They hacked my Facebook account, which was integrated with ManyChat. What happens now is that even though I have access to Instagram, which I unlinked from Business Suite, ManyChat indicates that it is linked to a page that I even deactivated.

I only have access to the application, which is very limited, and I would like them to close my account completely so that I can use it with the new Facebook account. There is no way to recover access to that Facebook account.