I have read your earlier posts from almost a year ago. I have received exactly the same errors that you have received. Then there were so many bugs and support was so bad, and I decided to bail out completely and closed all the accounts.
Same as you, I had a message about primary contact not matching, but the button to update information was missing. I'm very curious to know how did you manage to get fully verified from that point?
As to deactivation, I have seen a few reports on the Internet where people had an account long before this verification non-sense, then their account got deactivated and they had to undergo the modern verification. This is very puzzling that you get this. Perhaps another bug.
The HLK tests are not mandatory as of now. You can use attestation signing without tests. That's what I was going to do.