On Friday the 15th of November 2013 I saw a 50% off window at the Xbox Home. The deal included add-ons for games from the Devil May Cry series as well as a few Resident Evil games. I attempted to purchase the game Resident Evil 4 when it suddenly told me I did not have enough money to purchase the item. It then asked me if I would like to add enough money to my account to purchase it. I DID NOT want to purchase the game I just wanted to see if I already had enough points. However, I didn't, so I attempted to BACK OUT of the screen asking me to add money by pressing the B button on the controller. After doing so the menu suddenly added money to my account, and then purchased the item without any further authorization! I was dumb founded by this because this has never happened before. I was not sure if it actually charged me or not for the game or if it automatically downloaded a free demo or something. Regardless, I did not have enough space on my hard drive to download it so I was unsure whether it ACTUALLY charged me. I tried to see if the bug would appear again, by attempting to purchase a game I already had (The actual game disc is what I had) which I thought would not allow me to purchase again even if it was through the console. This game was Resident Evil Revelations. I already have the disc copy of this game so I figured it would tell me that or something right?! No. The same window opened and asked if I would like to add money because I didn't have enough. This time instead of hitting the B button I scrolled down the options and clicked NO. Sure enough, it started to download the game and then said I did not have enough space on my hard drive. I was furious! Even more so when I found out it actually charged my card! I also no longer see the window link in the Xbox Home for the 50% deals. I am very frustrated with this and need help to fix this situation and get my money back. It doesn't even make any sense why I would buy a game I already have!!! I do not know if anyone else had these same problems but if someone could assist me that would be great, thanks.