I got some iTunes giftcards for Christmas. I have spent them all, yet my account still says I have $4 left. When I try and buy a song, a message pops up that says, "Your credit balance is out of date. Click ok to refresh and try your purchase again." So I dutifully click ok, yet my balance still doesn't refresh. I have tried restarting both iTunes and my computer, with no luck.
Anyone have any suggestions?