My att account has been hacked and stolen by ex husband, he’s ruining our lives, ATT HAS DONE NOTHING TO STOP THIS!!!

I opened my own account in November of 2019 and not a week later, my account was taken over.  Devices and services have been added and upgraded, ive been locked out and unable to EVER ACCESS MY ONLINE ACCOUNT!  I’ve spent so many full days trying to get help and nothing has ever happened and he’s still going!  He has purchased a watch that he has synced to our devices and he tracks us and harassed us and has stolen every account that I have ever had!  I am so tired of this, I am a prisoner and att is helping him abuse me and I’ve lost everything now!  I wish att would just kill me at this point, it would be quicker and he’s going to anyway!