I received 2 emails from Microsoft Store that contained redeem codes for 10 dollars each for previously preordering 2 xbox one games. I redeemed them on xbox.com. My Account says I have 20 bucks on it now. I went to preorder TitanFall, and it did not take 20 dollars off, or even offer to use the money I have on the account. How do I use this money? Will it be automatically taken off when my card gets charged?