Being banned for a proxy is usually nothing serious.+1, Good Luck M8 :D
EDITED 6/25/2014:
I only have one question, this happened a while ago, but why were you banned for "proxy IP"? Ive heard of this type of ban before but never actually knew what it meant?
I don't know much about them, but most people use them to hide their original IP out of paranoia or out of connection issues.
A lot of hackers use proxies to hide their IP and be able to continuously hack, that's why sourcebans auto-bans anyone with a proxy for 10 minutes and asks them to turn it off.