I've been getting this error message on my iTunes consistently. I've been buying gift cards and currently have a gift card balance of $3.52 (Canadian). I also have a credit card on file as backup. Whenever I try to purchase a 'free' song, a 99cent song, or a full album, it gives me the above error message. I've restarted iTunes, restarted my computer, and it still gives me this error. I can't even buy anything! (or download singles of te week) any suggestions?