How can I change my payment method to none?
How can I change payment method to none?
iPhone 4, iOS 6
IF you haven't tried changing the payment before, go to Settings>iTunes & App Store>Apple ID>View Apple ID>Enter your password>Payment Information>None. If you tried changing to none and it wasn't an option, look here for reasons and help.
Why can’t I select None when I edit my Apple ID payment information? - Apple Support