You didn't say how long ago he was banned or how long ago he responded to the Support email.
I couldn't find your friend's username in the system.
Sometimes it takes a while to get a response. I haven't had personal experience with an account being closed, but as I understand it, they will give second chances but not unlimited second chances. (Moderators can't do it. It has to be staff.)
I do know that when they close someone's account for Fair Play, they don't reopen that same account. They start a new account with a different username.
My friend I'd -Alkanzi_chess faces one year ban from chess.com and he received a email for this information and in this email there is written that you may request a new account by contacting our support and he did it he appolize for his behaviour and said his mind was swiped that time and promised that I will never voilate any fair play policy in future give a single last chance but the support didn't responds I also try from my side to contact support but they said we cannot remove these restriction but in the email there is written that you may request a new account by contacting our support then I sent my request to fair play team members on chess.com but they also didn't respond if there is any support staff or fair play member who can check and solve my friends case he needs to create a new account only because his school is organising a event on there school club on chess.com so please help him thank you for looking on this