What the crap? SO, I was on iTunes on my computer. I have $6 remaining on my gift card. I clicked, "Buy App For 99Cents" or whatever that button says. I get a message saying, "Your Credit Balance Is Temporarily Unavalible." I click, "FREE." Same message. What the... I mean, I don't even have a credit card set up on that account! I don't know if that matters or not, but it's six dollars that I really would like to use. And I can't even get free apps. Can someone help me out here?!