I had this exact same thing happen to me. It’s super frustrating. Every time my advertising account was deactivated I contacted Facebook Concierge (chat support) and they reactivated it. As soon as I duplicated or created a new advert, it would then be deactivated again. The reason for the deactivation was that it was a ‘false positive’.
The approach that finally worked, was letting the concierge know that the account would be deactivated again and that THAT was the main problem. I asked them to stay on the chat, whilst they raised the case with their appeal/tech team. I was then able to test duplicating/running new adverts whilst I was still live with the concierge chat to make sure it was actually sorted, which it was.
I also took screenshots of previous chats and kept the case number details so I could show the new concierge that the issue hadn’t actually been resolved.
The last email I got from Facebook after it was resolved indicated there may have been some sort of ‘high level ban incorrectly implemented as it said “you are back on Facebook”. In summary, I would approach it this way:
1. Use Facebook concierge (chat support).
2. State the main issue is the continual deactivation, not just the current reactivation
3. Make sure they understand point 2 and if possible use screenshots from previous chats and case numbers to prove this. You could even ask them to re-open a previous case. I have found some chat support people are better than others, so hang in there for someone who gets what the issue is and takes you case seriously.
4. Ask them to stay live on the chat whilst a) your account is reactivated and b) you test out a duplication/new advert
5. Don’t give up 🙂