I did and you did nothing even though it was patently obvious they were breaking your very first rule.
1.1. Each player is only allowed to possess and play one account per game world.
In your other rules you then make exceptions to make it easy to break this rule.
So why can't you make exceptions to those rules when it is plain as the nose on your face they are cheating the system? You are only harming the game and RN's reputation by allowing it to fester.
I accept you are not allowing this cheating for financial reasons and apologise for stating it.