I have purposely not registered some people that have problems under their names an example case was Docwood (forgot he was Sevrin's brother).
The Vice War Staff has the last say on every team member of a gang whether we register them or not. If the gang leader is oblivious to the background of the members he's registering, we take action and deny you directly.
Your case is basically Bninin/Fairfax's case in that you're a ban evader, hence no acceptance. Be not discouraged however, the rest of the ban evaders will soon be in your position as well, I'm just lazy at the moment to be thorough.