HT201303 Why do I have to put in a credit card when I redeemed an iTunes gift card?I

Question

itunes says the card was redeemed and it still asked for a credit card or address when I want to use the gift card.

Answer 1

Is it an account that you've just created ? If it is, then unless the instructions on this page are followed when creating an account : http://support.apple.com/en-us/HT2534
then credit card details will need to be entered before the account can be used to download any item from the store - you should be able to remove your card after entering it, it won't be charged (apart from a temporary store holding charge which your card issuer will remove within a few days or so) if your balance covers the purchase (you can't use your balance for gifting). Credit card details may also be requested if you change countries so as to confirm that you are able to purchase from your new country (e.g. that you have a billing address in that country).
If you are being prompted to review then you could see if this post by mountaingoatgirl lets you do so without needing to enter credit card details : https://discussions.apple.com/message/24303054#24303054