E.y
4
I cannot answer your questions, but here is my advice. Since those are two different issues, make a ticket for the Crom Coins bug, to at least get access to your solo player server again, or to private servers. As they are unbanning your account, they will also be fixing your Crom Coins balance.
As for the suspension from the official servers, you might want to write a separate ticket to know how long you will have to wait before being able to access to an official server again.