I just converted my microsoft points to the new microsoft account and purchased an item for my Xbox 360 through the online store on my PC. Afterwards I noticed that I was charged the full amount entirely on my credit card, and none of my account balance was used. When I confirmed the purchase there was no option to specify whether to use my balance, so I assumed it would do so automatically and only charge my credit card with the remainder of the price. Instead, it completely ignored my balance and charged everything to my card, and it still shows the same account balance in my account info as it did before my purchase. There was no indication given that my purchase could not use the account balance, and nothing in the support info on Xbox.com says that I can't use my account balance for this purchase. So why wasn't it used? I don't want to be charged the full amount for this if I have an existing prepaid balance available to use. Thanks in advance.