ITunes is one of the most downloaded computer programs as it provides not only top-notch audio, video, radio and podcast management, but also an extensive App Store. The App Store is set up in such a way that you can pay as you go or build a monthly balance. When the month is up, the balance must be paid off. This deletes the balance for the next month.
Open iTunes and click the "Store" option on the top of the iTunes window. Click "View My Account" from the context menu that comes up.
Enter in your iTunes account password on the next screen that comes up. Click "Edit Payment Information" on the next screen.
Click the type of payment you would like to use to payoff the iTunes balance on the next screen. You can use a credit card, gift card and PayPal account.
Fill out your account information for the credit card and PayPal options or enter in the iTunes gift card number.
Click "Done" and the payment is set up. Click the balance option on the front page of the iTunes window and click "Pay."
Click "OK" to verify the payment and the iTunes balance will be deleted.