Blizzard bans the autistic

My Autistic son (he is also non-verbal) has been banned from WoW till Nov! When I put a support ticket the Customer Support Rep marks it resolved and won’t hear me out on the issues this is causing, and this happens shortly after getting 180 day game pass. If no one understands, when my son tries to open the game and he can’t do anything it triggers him to start screaming and sometimes bite himself. This is one of he very few things he can do to keep him calm. I can’t even find a live chat to try and talk this out.

What did he do to get banned?

customer service said he used invulnerability cheats. Since my son doesn’t talk I truly don’t know what happened.