Hi I signed my account in on my friends xbox yesterday and today i singed back in to my xbox to buy minecraft for xbox but when I was about to, it said i had none. I previously had 2680 ms points and now they are all gone. I checked my download history and it said it had downloaded 'PREMIUM GOLD JUMBO' 10 times and then 'SILVER UPGRADE' once. Please help! I know my friend wouldnt use it.