Sorry to hear this is still ongoing Rymdelefant.
There is an issue that sometimes appears after an older account merge, which may be what's affecting the account in this case.
The support team will need to help get this cleared up, so please reach back out so they can take a look at the account. I see you mentioned already reaching out without getting a response, though looking at each of the cases you've created they do mention resuming a case to speak with someone rather than opening a new, separate case.
Please head to your case history page here and resume the recent case so support can take another look here, thanks!