WORLDSIM is a SCAM, phony and extremely fraudulent company. It is even shameful to deem it as a company because if you look at the website, it's a joke because they claim to be a small team situated somewhere in the UK. The descriptions on their website is completely false and misleading.
They say that they can provide you with an international sim card with a US number. But all their numbers are sent out with a UK number, if you are even lucky enough to get the sim card delivered to you. They charge you 25€ (I KID YOU NOT) just for the postage from the UK to Germany and more if you are located somewhere else. This is a bloody joke because they promise you that you will receive the product within 3 days. But they actually ship out the product on the 3rd day so the product won't even reach you in 2 weeks. They then ship out your product with the wrong address or the wrong name even after contacting them multiple times to inform them about the right address, and then they have the audacity to mention on their website that they have a return policy but will only return the product amount but will not refund the postage amount, lol. That is if you even actually receive the product. And then comes the part where you have to contact them every single day for more than a month to fight for the refund and they will lend you a deaf ear saying they will look into it. Nothing gets done until you get sick of it and either let it go and choose to take it as a lesson learnt or just choose to initiate a chargeback on your credit card. Please take this from me, this fraudulent company will do everything wrong and then some more to make it the worst experience for you and all to avoid refunding you.
Most of the 5 star reviews for WORLDSIM are fake and were written by themselves and you can deduce it if you look at them closely. No one, I repeat, NO ONE who has experienced their service would even think of leaving a half decent review for this garbage.
They have a blog which is basically generic articles written by AI and half of them do not even make sense.
The "company" can be very closely compared to one of the scam call centres located in India. It works similarly and their customer support is THE WORST! If you make the mistake of buying anything from them, just forget your money or any hopes of getting a refund because not only will you not get your product that you ordered, but if you ask for a refund, they will act dumb and will make you frustrated enough to just give up trying to get a refund. They reply to your email with generic automated responses and they get you nowhere.
If you want to waste your money and give scammers your personal card info, then WORLDSIM is your best choice. If you want good service and a product that you actually ordered, then STAY AWAY from this scam of a website. It's criminal that they even exist.
Please, I implore you to make the right choice, check their website out, trust your gut feeling and avoid this fraudulent company.

I've had a WorldSim for years. It used to be a very useful product, particularly for travelling to Canada and South Africa but two changes have happened in recent years which I believe are unfair and mean that I will no longer use them, and absolutely wouldn't recomment them:

1. Without notification they introduced a monthly charge. It's minor, so that on its own I could live with; but why not notify customers so they can make an informed choice?

2. I received a message saying my SIM was expiring, I would have to buy a new one, and my number would change (I see from the reviews below that others have also experienced this).

I was given seven days notice.

Now, I don't know about you, but having my mobile number change is a real pain. Those using it for business may find customers cannot contact them, may need to update websites, business cards etc. I can imagine anyone using it as their main business phone will be even more disappointed than I am.

And having to purchase a replacement SIM seems very unfair; and if I don't, then I'll (presumably) lose all of the credit I have stored on there.

I understand from WorldSim's online help/FAQs that you can't get a PAC code (which would allow the number to be transferred elsewhere), so that's basically it -- the number will be lost.

I raised a ticket via WorldSim's help 'contact us' feature asking for a refund of my stored credit since this seems to be a major change in the service provided. They wrote back saying I needed to e-mail them all the details (which is weird as I'd put the details in the ticket). They didn't specify what details, but I've forwarded details that I hope will be relevant.

There's also the confusing fact that WorldSim now seem to be focussing on selling protective face masks. OK, fine. But it seems bizarre to me that I'm told "Buy a SIM upgrade that you don't want, have a new number that you don't want... and we'll give you a facemask you don't want for free".

In summary, I have experienced WorldSim 'moving the goalposts' to the detriment of me as a customer.

WorldSim, if you are reading this:

A) Sort out PAC codes for those who want to leave based on this change

B) Give refunds (via paypal/electronic transfer) of any unusued credit to those people who are affected.

Update: after initially not responding to my question, WorldSim finally got back to me:

"We are sorry. These are prepaid sims and just like other prepaid sims, the refund of sim credit is not possible."

So basically, in my mind this translates to "We'll substantially change the goal posts, whenever we like, we'll make you pay again, without giving you the option of leaving with a refund... but what you gonna do about it".

Further update: WorldSim do not allow (or have disabled) texting to shortcodes. I had planned to donate my remaining credit to charity (you know, the 'Text 'Care" to xxxx to donate £5' type thing). Nope, got a message back saying I can only text to numbers with 11 digits or more.

I wonder how much credit they'll "inherit" through these changes.

WorldSIM has just notified us of the expiry of our two UK SIMs on 7 days notice! From web posts many/most other WorldSIM users are affected. Details below:
1. Email notifying expiry of my wife's and my SIM arrived only one week before the expiry date.
2. This expiry appears to apply to fairly recently purchased SIMS, including 4G SIMs, as well as older SIMs. The expiry may be restricted just UK SIMs, or perhaps UK and Aus/NZ SIMs, but may effect all SIMs apart from the very most recent 'New International' SIMs. Coudl WorldSIm please clarify.
2. No previous notification as far as I can remember that the SIM would ever expire.
3. The email suggested we buy a new SIM (albeit at discounted rate), however on challenging this with customer services we have been offered one free SIM
4. The email suggests that the new SIM is better, because it is a 4G SIM, however my wife's SIM already seems to be a 4G SIM, as both the phone and connection analysis apps say it connects via LTE, a 4G technology, and the instructions require you to set your phone to use a connection type which permits 4G in preference to ones which permit only 3G or 2G.
4. My credit is to be preserved but the SIM I am directed to buy to preserve it is the International SIM, which, from the web site, has much much higher rates for UK to UK calls and for data and texts. The email suggests charging will be the same or lower, but this is inconsistent with the web site information, so I am not sure which to believe. The UK SIM seems not to be available at the moment.
5. My mobile number cannot be preserved - I will be allocated a new one.
6. No information has been provided regarding whether the new 4G SIM will work in my old 2G phone which uses an old style large format SIM.
All the above information is taken from the original email, web site, and subsequent support messages. I will post with revised scores and comments if this changes when I receive further feedback from support.

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Please find below a copy of the email I have sent to customer support in response to their email offering me one free SIM as recompense for SIM expiry:

Dear Customer Service

Thank you very much for your reply, and your offer of a free SIM.

We are a little puzzled regarding why our two UK SIMs are being expired, as we have found them to be satisfactory for our purposes, and have found that they offer 4G connectivity. We do understand however that sometimes SIMs have to be retired for technical reasons.

But when that happens I guess clients can reasonably expect the process can be made as smooth as possible.

With that in mind we would be grateful if you would:
1. Provide free SIMs for both the SIMs which are being expired, and post these to us so they arrive before the expiry date. Our address is below this email.
2. Transfer our existing credit to these two SIMs, so we don't need to immediately add further credit to them
3. Transfer our existing mobile numbers to these two SIMS. (Both are registered to my account). These are: [Phone Number 1], and [Phone Number 2]
4. Ensure that all the charges for these two SIMS are as previously applicable to the UK SIMs, or less. (5p per minute for all UK to UK calls, 5p per UK and international text for SMS texts, 5p per megabyte for data, 5p per voicemail).
5. Ensure that both still automatically detect and use the service provider with the strongest signal, as this is critical to our usage.
6. If possible ensure that the new SIM you issue to me [My Phone Number] will work in my old but still current 2G phone, which uses an old style large format WorldSIM. (The UK SIM issued to my wife relatively recently still supported the correct physical format).
Pending your response we won't purchase further SIMS from your website as suggested by your recent emails and messages, as we otherwise risk ending up with 3-4 SIMs, and spending money unnecessarily!

Many thanks for your help in anticipation.

Kind regards

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More broadly:
If you ignore this incident, and the website problems it is probably only fair to acknowledge that the UK SIM, if still available, works well in the UK, particularly regarding its ability to find and use the highest signal network, and is sensibly priced for UK to UK calls, though not quite PAYG - there is a £1 pcm charge as well as the call charges. Wish I could get autotopup to work though!

The information on the web site is sometimes misleading. I get the impression that the product has changed over time and the web site has not kept up. Also that information on the country specific SIM pages sometimes relates to the general international card, instead of the country-specific card.

Support is best gained in my experience via the web site contact form on the contact us page - getting through to phone support can take ages. Leave the reference number field blank for a new enquiry, and use the reference number format given in emails from support for subsequent submissions using the contact form. (You can receive reference number from phone etc contact but the format does not work on the web contact form in my experience). Support received via the web site contact form is overall of reasonable quality, and sometimes excellent (as you can see from a past rating of mine).

Re returns WorldSIM allowed me to return some face masks which did not appear to have the appropriate certifications. However despite promising a refund for the masks, I do not think I ever received one unless they topped up my account without informing me.

Regarding shipping (which I assume includes fulfillment) the last SIM they sent me was an Aus/NZ SIM not a UK SIM. They said it would work anyway, and it did, but it took significant time and effort to clear things up and check that the charging was the same. Delivery times have been fairly slow from memory.

I gave my absolute best effort and gave WorldSIM many, many chances. I was by no means impatient with them or their products, but after all my months of effort, it's very obvious that this is a 1 star company or less. Starting with their website, which is very poorly made and definitely lacks vital instruction on how to properly setup and configure their SIM cards once you've purchased them. These are the steps I've gone through with this company (attached list of emails with many, many replies per thread):
* Visit their website for the first time, didn't gather enough information on the difference between a Data SIM card and International SIM card, so I utilized the website's built-in chat feature. While the representative that I got was clearly struggling with English, after pulling teeth I eventually learned that Data SIMs cannot (supposedly) accept phone calls or text messages. So I decided to get an International SIM for my phone and a Data SIM for my hotspot. Later I find out there's literally no difference functionally.
* Fast forward to I receive the SIM cards in the mail, I immediately go onto the web portal and try and "activate" the SIM cards by putting in their ID. Neither of them were able to be added to my account for a reason I still don't know. Contact customer support, pull more teeth, finally get them added
* They are now added, but do not have the 100 GBP I added to either of them. Contact support MULTIPLE times on this account throughout the week and finally receive my credit.
* Attempted to add a virtual number to my international SIM card: my card was charged for it, but there was an error saying it could not be added. Contact customer support AGAIN and they finally add the number for me.
* Was told to enter a special code into the PIN pad on my phone in order to activate the number that they added. No surprise... DOESN'T WORK. Contact customer support for the nth time. They said these exact words (photo provided): "As we can see due to some error you were getting an error. You can try to use the services now as the issue has been resolved."... Thank you I guess? It was fixed after this but seriously? It's now becoming very apparent I'll have to contact customer support for literally anything that needs to get done.
* Number actually does work after this for making calls, but apparently you cannot receive SMS which is a HUGE let down which is EXTREMELY obfuscated on their website.
* Try the same with the Data SIM card in my hotspot, NO SERVICE. Try in my phone, NO SERVICE. Try many different configurations, NOTHING. Guess what. Contact customer support, they say there's some special APN (?) configuration they need to do on their end. Still waiting to hear back about this.

WorldSIM, if you're reading this, make a product that actually WORKS so your customer service workers aren't constantly berated with requests to do things that the product claims to be self-service. To anyone else reading this, please spare yourself the time it takes to get these working properly and just choose another company. Sadly, I have no other company to refer you to, but I'll be trying some other global SIM card provider shortly. Customer support is the only thing that works at this company, which would be great if anything else worked.

I ordered two worldsims with voice+data bundles for a trip to Canada. I assumed this would be easier than buying a SIM card locally. I also ordered Canadian phone numbers and a phone number for my home country. I assumed this would allow Canadians and people in the Netherlands to call me at local rates, without any additional cost.

The ordering was easy and the SIM cards were quickly delivered. So far so good.

I found out that one of the bundles I bought was only valid for 14 days, instead of the expected 30 days. I appearantly missed the fact that only the biggest bundle is valid for 30 days.

I contacted support using the chat in an attempt to change the bundle. The agent did not appear to understand my question and I got the distinct impression that I was chatting with a bot giving me canned answers, instead of a real person. After several attempts to explain my problem, I opted to send an e-mail instead. Apart from an automated confirmation, they never replied.

A few days before leaving for Canada I activated my local phone numbers and attempted to test them. They did not work. Turns out calls to these additional numbers cost me another $0.18 per minute, despite having an active bundle, so I needed to add some more money to my account. Also, for outbound calls using one of the local numbers as the caller ID, they charge you their per-minute rates instead of deducting the talk time from the included minutes.

To add insult to injury, in Canada it turned out that the data connection did not work well at all. The connection was dropped every few minutes on both phones we had with us. We could only ever get a data connection on the Bell network, not Rogers or Telus. When the data connection did work, speeds were horribly slow. Enough to receive WhatsApp and e-mail messages, but not much else. (I checked the APN settings multiple times, they were correct)

Outbound calls weren't much better either. On a few occasions I got an "all circuits are busy" message when attempting to place outbound phonecalls. Only after several attempts, my calls got through.

After all this I decided to replace one of the Worldsims with a pre paid SIM card, I bought at Wallmart for less than 50 CAD (~38 USD). That was what I should have done in the first place, because that local pre paid SIM worked fast and flawless for over 2 weeks.

I recently purchased a 1000 Minute / 5GB package for my recent visit to the US and Canada. I need not have bothered as it never worked but for a brief two hour period while transiting Vancouver. It was simply not fir for purpose, I spent precious hours of my holiday, put on hold for on average 30 minutes each time before I could get through to different India-based call centre representatives, stating obviously fake anglo-saxon names such as Daniel, Jonathan, Maria and sporting a put-on Amerian accent. None of them were empowered to make any major decisons, some of whom were very rude. Meanwhile, waiting on hold trying to get through to them eats into one's minutes. I lost 100 minutes just through this process. If one got through immediately, I can understand getting charged. But being charged for waiting to get through? Rediculous and unfair. WorldSIM's claim that their Customer Service is available 24/7 may be technically correct but they never advertise that you will have a long long wait to get through eating into your precious holiday!

The other disappointing bit was that each time you called, the rep will not bother reading your past history and one had to repeat one's woes all over again. At the end of it they will offer to escalate your case to their Technical team or Accounts Department or some such. They will then promise that they should have a solution within 12 hours or sometimes 24 hours (depending on who you happen to get) and that they will send an email. But with data & phone not working how is one to access one's email. Besides one will never receive the promised email with the solution. So one has to call their 24/7 customer service line and wait and wait and wait and when eventually one gets through repeat the whole history again. They will want to know who exactly you spoke to. If you ask them to check their system for this information, they will have some exuse as to how that is not possible. Finally when the email arrived with the "solution" to get my SIM working in the USA, the feature they wanted me to invoke was not there on my phone instrument (SIM TOOLS). Another phone call from a public phone and another anguishing wait in the hotel lolly to get through and when I explained that my phone did not have the feature and that even after downloading the tool they recommended, the SIM is still not working. Then the rep tells me "Can you please change your instrument and try. It appears that our SIM might not work on your Motorola model." This is when I got quite upset. When I told him I did not have another instrument, he ask me whether I could purchase one so that the SIM could be activated! That was the last straw. I told them I had lost all confidence in their support system and demanded a full refund. I also pointed out that their website never states that their SIM will not work in certain makes and models.

I then had to get through my holiday without an ability to call home or get calls from home or friends.

When I returned home, I had to spend another 2 sessions and spend a multitude of emails to get a refund. They simply did not want to refund anything on the basis that my data had worked for some time. I finally said that I will have to escalate this matter. Finally I got a refund.

I am definitely going to avoid WorldSIM, and I encourage others looking for a reliable solution abroad to look at other providers. You have better things to do on a holiday than be put on hold for ages to get a solution to a problem, a solution that never eventuates. Very unprofessional. They leave a bad taste in the mouth.

First of all, please be also aware of all the fake positive reviews that always appear after such a negative review to hide it.
I have received a notification about this company and lots of fake reviews which were detected and removed by the Trustpilot.
"Our customised software has discovered a large number of fake reviews on this domain and we've removed them"

My experience:

They claim that " Your WorldSIM SIM card comes with a UK and USA phone number as standard" which is NOT TRUE!
The Given number is a *******... which is an " Isle of Man " mobile number and doesn't count as a standard UK mobile number.
I gave this Simcard to my wife to use it during her journey so that I can call her without any roaming cost for the incoming calls. However, the first 30 minutes conversation cost me 10.00 pounds extra!
My costs until now:
20pounds for the purchasing Worldsim plus 10 extra pounds from my provider for only 30 minutes talk just because the Worldsim number is not a real UK number (Isle of man number instead of standard UK).

Additionally, 46 minutes waiting on the phone to have a chat with customer service according to this problem. (I gave up and just hung out)

Update 12-05-2018:

After spending about 2 Hrs on the phone since yesterday, I could finally get in touch and have a chat with their Indian based customer service.

The unbelieve nonsense answer was that:
" Its because the sim card is a roaming sim card and if someone calls you on this sim then this person will be charged extra by the provider, and the person won't be able to use included minutes of the contract, and we have mentioned this on WolrdSIM homepage "!

As I asked where can I find the information about the extra cost she said " I don't know! --- I will send your problem to the technical team which can take up to 10 WORKING DAYS "!

On the other hand, the best part of the answer was:
" The provided number is a standard UK number just because of the +44 even if the number is an --isle of man-- mobile number "

Update 14-05-2018:

The phone number has been sent to the Email address which is provided in their reply here and now waiting for solving the issue as promised.

Update 17-05-2018:

After email communications, the answer at the begin was:
"Unfortunately the number is what it is...".

I have asked the company to provide me with a virtual number (DID) to solve the issue and they did it. However, we are not able to test the number until next 4 weeks as my wife was forced to buy another national sim card to be reachable and avoid extra costs.

Update 27-06-2018:

I have tested the DID number which is provided by the company.
Again and as expected another disappointing and just a money making method.

Calling this number costs about £ 0.19 per minutes!

Using this card cost me at the end more than £60 (incl. The Sim).!

The way this Indian based company makes money is absolutely not acceptable.

I've received almost immediate, professional, knowledge and corteous advice/support, EVERY time I ask for it!

Good

Outstanding Experience!