So I got a $15 iTunes card today, to access the App store and create an account. When it asks for my payment method, I typed in the code into the Gift Certificate box, and then clicked continue, without entering any credit card/billing info. The page loaded, and apparently the code is invalid. It's the exact same on-screen as it is on the card, so I don't understand what's wrong? Do I have to enter any other info? Because I don't have a credit card. EDIT: Nevermind, stupid me put spaces in! Ignore this topic.