There is no none button on my itunes payment information
I go on my payment information to grange it to none but there is no none button what do I do I'm on a ipad mini
If the None Option is not available to you on an existing Apple ID there is not much you can do.
There is this... But... it entails creating a New Apple ID which is not a suggested solution.
To Create a New Apple ID without a Credit Card... Try Here...
http://support.apple.com/kb/ht2534
( Use a computer and pay Particular Attention to Step 3...)