Q: i want to redeem my gift card

Redeem iTune Gift Card

http://support.apple.com/kb/ht1574

Step by step

1. Tap iTunes Store

2. Tap Music and scroll to bottom

3. Tap Redeem

4. Peel off label and enter code

5. You can now download your app, game, music or movies

Typically, I believe that means that the card was not activated correctly where it was purchased. Like all gift cards, iTunes gift cards must be activated when purchased or they will not work. If you bought the card yoursefl, and you think this is an erroneous message, look here for help.

If you can't redeem your iTunes Gift Card or code

You will most likely have to contact iTunes Store Support For help. I just had to contact iTunes Store support for another matter and they were very quick to respond and quite helpful as well.