This happened to me a couple months ago. My Facebook account was disabled, as well as my instagram account, since it was connected to the Facebook account. No explanation, and no possibility for appeal.

I had the account since it was only available to college students in like 2008. No idea what it could have been, I barely even used it lately.

I tried to make a new account a couple times with different email addresses, but it didn’t let me.

I guess I’m just banned from Meta for life, most likely due to a false positive from AI.