Hello,
I think u should make like 3 times ban = account delete.
We don't want to give the players a negative message about ban that it's not that easy to cheat and even if u get caught u will have your account back for next round , Since accounts now have medals and achievements + credits ( if exists ) , Players need to fear the bans more so they don't keep on cheating every round, Cuz now u can see many players got banned 7 times n 9 times before and this is totally not good to see for new players or even old players.
I Hope my idea is clear.