As explained above, buying/selling bitcointalk acounts is frowned upon by the community since it encourages spam and scams. And, afaik, anyone who have been caught selling/buying bitcointalk accounts has been tagged. So, your case is not an exception and don't expect a special treatment.

You should also know that trust is not moderated so even mods can't help you remove those negative feedbacks.
Beginners & Help isn't the appropriate board for this kind of discussionss. Better move this thread to Reputation board