Basing it on what I have seen so far, members who haven't build up their reputation yet and has already been tagged based on their scam accusation cannot really have a good reputation. You already have lost your chance by the mistakes you did and there is no going back from that. In my opinion if you really want a chance to somehow start up fresh then you must fix your scam accusation first before you even try to build up a good reputation. Of course there will be no guarantees that it will fix the problem but it's your only chance to start out clean.