Feral Heart

I've messaged a moderator about getting a username change but unfortunately, i can't tell if it has sent as it says my outbox is empty, so i'm stuck with the problem of the fact that i cant log into the game at all, the forums i can log into but the actual game i can't which means i can't play... i've been sat here for over a month or two trying to register for this game and now i cant play because my username is too long, and i cant seem to find out how to change it, someone help please?