Print All Over Me

I have been selling with PAOM for about a year and a half now and have had a number of sales. At first they were great and paid my royalty payments accurately and on time. Over the last year though they have become extremely dodgy and it takes lots of emails back and forth for them to actually pay out the money they owe. At the end of July my last payment was due (before they changed to quarterly payments) and my money did not come through. After many emails back and forth, and many ignored emails, they still have not paid me. "Sharon" who is very abrupt over email told me my payments were on their way twice, and both times nothing ever came. Then weeks later I get weird emails from her asking for my email address connected with my Facebook account. Whatever that means, I don't know as they have paid me a number of times before. Since then, I have not heard anything back from her! I suddenly got an email from "Morgan" at the beginning of the week (after weeks of radio silence again) who was going through and closing cases, checking that I received my payment. I told them that I hadn't and they have still not given me any reply. It's exhausting.

It seems as though they do not respect the designers on their site at all. Their products are also very hit and miss (cotton t-shirt is great though) and sometimes shipping can take months without any reason why! They are great if something goes wrong and will replace your items but this does not make up for how unethical they have been in paying me the money I have earned through selling my designs in their shop.

As soon as I get my money. If ever. I will be closing my shop and never dealing with them again.

So, my order has one heck of a experience and was a lot of confusion and stress. On the 3rd of August, 2017 I ordered a xxxxl hoodie. The order was processed by the next day and was predicted to be delivered by the 31st of August. They said that there would be a email sent out to me when it was picked up by the delivery people with a tracking code. A few weeks go by and eventually I began to worry; it was the 27th of August and not only was there no email saying a word about my hoodie, but their website still said it was in production. I sent out a email to see what was going on they responded with this...
"Hi Dom,

We are currently waiting for your package to go through customs in Japan. As soon as it comes out of customs, it will ship out to you. Thank you so much for your patience!

Have a great day,
(edited out name because privacy)"
To this i was kind of relieved, at least they knew what was going wrong and it could be fixed shortly.
Sadly, that's not where it ends.
The 6th of September comes and I'm quite nervous something went wrong. I email them again and get this response...
"Hi Dom,

The shipping company that we use misplaced a whole box of orders. Production remade all of the orders. Your order was in the missing box. Your order has already been remade and is shipping straight to you from production. It will ship out by Friday. I am very sorry for this and I very much appreciate your patience.

~(edited for privacy)"
They lost my and a whole bunch of orders. I had bought this hoodie for my friend's birthday (which was on the 4th) and it looked like he had to wait for another week.

The day I'm writing this is the 18th of September, I just got the package delivered to my house. I never got a shipping email, so I was just as surprised as he was. Lucky he was over today so he got to unwrap it from its packaging. Turns out that the hoodie sizing is nowhere near normal sizing and a xxxxl in their eyes is a xl-xxl at most. I spent $93 on a hoodie that was lost, remade, shipped 3 weeks late and it didn't fit,