LevelMy360.com will gather gamer points from various games for you for a price. For 500 points, it will cost you $40 and the highest plan of 5000 points will cost you a cool $320. They need access to your gamertag of course to do this and that's something that I would be hesitant in doing as you don't know who's going to be in charge of your account and if they are going to do something else with your information. If you REALLY want to increase your score and don't have time to do it this might be the way to go for you.