15 years of my life (on Facebook) just deleted!

Last week my Facebook profile was tken down because an instagram user I've never heard of violated community standards???

There is no way to contact a human being, and my appeal seems to be submitted to nothing. I requested a download of my profile, but all that I got are profile photos - 15 years of photo albums, groups and events, messages.... and access to other websites that ask for Facebook login are all gone, and it could happen to you too!