I bought an app from the App Store using the App Store icon on my dock. I assumed it would be paid for out of the gift card money I had in iTunes, but it took money directly from my credit card instead. I am set up with the same email/password for both the App Store and iTunes and was signed in to both when I made the purchase. I can't even find where money I have from a gift card would be in the App Store? I wanted the better (laptop) version of the app that was offered in the App Store, not just the iphone, ipad version in iTunes, hence, I didn't make the purchase from iTunes. SO...how or can I use money from iTunes to pay for purchases from the App Store? Thanks.