Facebook Personal Profile Hacked by Meta Copyright Infridgement

Good Morning, 

My boss’s personal Facebook profile was apparently hacked, and deactivated because of fraud. And now his profile names says Meta Copyright Infringement. The email on the account was changed so he has no way to get in and change the account back to him. 

Has anyone had this happen to them before? Or have any advice on how to fix this for him. Thank you in advance.