You do realize that "your friend" <-- supposing this entity exists and is not solely a lame excuse,
did one of the worst possible things he can? "I feel like being banned for this was unnecessary" I'd like to say that that in itself is claiming you do not feel what you did was wrong and is alone reason enough to keep you banned.
No, I say you shouldn't be unbanned, but it's not even my decision. I'm solely making you aware that you won't get another chance since it is impossible to prove it is "your friend" and you think what he said is not bad enough to be banned for. So you're saying "I didn't do anything, please unban me". Quite a dumb thing to do if I do say so myself.
I also highly doubt "your friend" did it due to the context of your message. Weak excuses will receive weak praise.
