The reason they might not reset you is cause they do not want to get complaints from you saying that you where x amount of prestige and you been reset to rank 1 no prestige. Not saying you would complain. Not only that they know you did a glitch to prestige 12 and they are probably keeping people at that so they suffer from glitching in a game. that's so people that done it know not to do it again. Unless they make a new account and play.