1. You fought 1 or more matches in a private server, thus getting a higher belt.
2. The OP w. Black belt wanted privacy, so he banned you from that server.
3. Since you now have a higher belt, you can't join the beginner servers.
My best guess, don't worry about it, as long as you can play on any server, you are not officially banned.
Also, try joining the servers with green names, they just might suit you better.
Last edited by Lazors; Jun 29, 2012 at 01:47 PM.