TL; DR: I paid over CHF 600 for nothing but late reminder fees and contract termination charges for a company that did not provide a single day's secure service!
I ordered a SIM card online which never arrived by post. So I went to a Salt store, told them I didn't receive the SIM card and picked up a brand new one. I had to scratch the card, so I know it was a new one. On the same day, I opened my Salt online account and found a ton of usage, worth over CHF 300 that I didn't even recognise! This included a bunch of international calls to India, Sri Lanka and many other countries, to phone numbers that I didn't know!
I contacted Salt customer care and was gaslighted. They told me that I either "Made the usage and forgot about it" or "Someone else made calls from my phone", and I know both were not true. They simply did not listen to my claim that I did not make this usage. For the sake of safety, I got my SIM card blocked right away.
After several complaining emails back and forth, I FINALLY got a response from Salt admitting they made a mistake, the charges were bogus and nothing to do with my contract (email attached). I told them to end my contract right away, which they DID NOT DO!
I continued to get reminder fees and was finally slapped with termination fees (CHF 200). I had to pay over CHF 600 to a company that did not provide a proper service for even a SINGLE DAY. Bear in mind that all services had been suspended, and I was still charged all manner of other things!
I wish I had read these bad reviews before I decided to go with them. STAY AWAY!