I lost my facebook account about five years ago--total outright account ban. No recourse at all. It happened to a group of about 10 people that had been administrators of a local non-profit's facebook page and who had managed groups for the organization in the past. Our non-profit was non-denominational and helped local teens with after school type programs. We never knew why our personal accounts were banned. Best we could figure was that we used a tagline in the past in some facebook comments and posts that later got co-opted and spread by a "white power" group in the USA. We were located in Canada.
At the time, some people recommended buying an Occulus device and calling their support because they were able to recover accounts and they had human support. We tried appealing to the company on social media, but we didn't have any luck.
I had to rebuild my social media profile and our organizations profiles and I lost 14 years of Messenger conversations, posts, and photos. These memories were just gone. It sucked. For the non-profit, it meant lost donations and lost connections for our alumni. Keep your own content off-platform.