iTunes Pass New
Now you can add money directly to your iTunes or App Store account with iTunes Pass. To get iTunes Pass, go to the iTunes Store on your iOS device, scroll down, and tap the Redeem button. Then go in to any Apple Retail Store3 and let a Specialist know you want to add credit to your account. Open iTunes Pass in Passbook, and have the Specialist scan it and accept your payment. Your balance will be updated and can be used immediately.
More details about iTunes Gift Cards and iTunes Pass can be found at the link below...