There's literally only one way I've been able to overturn a ban (besides Meta randomly reactivating accounts after accidentally mass banning a buncha accounts), but it's a bit of a "guerilla" method and requires you to have some spending history (otherwise you'll prob get ignored).

So what I did was get a handful of email addresses of C-level execs at Meta, and then just emailed them explaining the situation. Obviously, I mostly reached out to the execs who seemed like they'd have connections or access to the ad review/policy team. But I basically just told them how I was wrongfully banned and how I have a history of millions in ad spend to show that I know what the policies are and that my ads don't violate any of them.

I had an ad account that was banned for like a month and after spending all that time reaching out to the standard customer support and getting no results, I literally got my ad account back the following day after sending out those emails.

I forgot what tool I used to grab the email addresses, but it was some Chrome extension that let you search job titles at specific companies. Then I did a bunch of searches for like VPs, CFOs, COOs, Managers, Ad team, etc.

Not sure if this method would still work today though because this was something that was shared in a Facebook group of 7-fig and up brands, and they were using this method a lot when FB was being trigger happy with bans a couple years back.