Hail Mary
Dear Riot,
Please refund all $ spent by the player, after you permanently ban them from your game. It is dirty money. You are better than to willingly take dirty money. I have faith in your humanitarianism.
Tootles!
Taking a players money after permanently banning them is dirty money because it is money gained by exploitation of people. Riot is fully aware that "misbehavior" is natural human behavior. Riot willingly accepts $ from people knowing that the person will be banned afterwards. Only a bully would take your money and then harm you, take your money and then harm you, take your money and then harm you, take your money and then harm you, take your money and then harm you, take your money and then harm you. (Riot goes on forever. The player stops/runs out of money.)