You should contact chess.com support
there cheter in chess

if me get ban then me sue.
You're not likely to get a ban just for discussing a (not allowed) topic in the forums. If the person that you think was cheating was cheating, they will likely be caught and closed for Fair Play.

https://support.chess.com/article/648-what-do-i-need-to-know-about-fair-play-on-chess-com
iDscussions of cheating, potential cheating, or cheat detection are not allowed in the general forums.
he stole all my pieces and bullied me around until checkmate. im angry. i want him ban now