There has been glitches involving bans in the past, so if your not entirely sure what you did (If you did anything at all), please reffer to Thrillex's directions towards the staff list, where you can PersonalMessage them there.
Oh, and just another thing; you cannot make a new, 'un-banned' account. FeralHeart always IP-bans, which bans every account related to your computer, or internet connection for that matter.