Unban

I was banned from casual for i what i suspect to be no reason as yesterday when i was playing everything was fine and i did not receive any warnings or such from admins/mods. What happened was that i logged off that night and since today i have gone to log in (5mins ago) and i received the msg i was banned from the server which confuses me because that would mean i have been banned from the server while i wasn't even on plus i did not receive any warnings or such even though i didn't do anything wrong. I would much appreciate if i was unbanned from this misunderstanding, thank you.