You don't have a button for it - Report a hijacked account. - Hard to report when ya do...
GetHuman613896's Hacked or Disabled Accounts issue with Facebook from April 2018
Help with my Facebook issue
Before contacting them, items GetHuman613896 may need:
Email on Account, Phone number on Account, Name of Account Holder, and Photo of Passport or Driver's License
GetHuman613896's next move: go to the Facebook help center.
Facebook doesn't have a customer phone number that is answered by an agent. Instead, GetHuman613896 will want to follow the link below to head to their help center. We will check on GetHuman613896 later to make sure it's all set or try to help escalate.