I don't have the "None" option
I was searching if what if I don't have any credit card and I want to sign up for Apple Store. And I saw that if that so I should choose "None" but then I figured out that I don't have that kind of option.
iPod touch
Did you create a NEWaccount using the instructions in Creating an iTunes Store, App Store, iBookstore, and Mac App Store account without a credit card using an email address you had not previously used with Apple? It appears that you did not either use a new email address, create a new account or not follow the instructions.
You have to.
Maybe that option is not available in your country. It works in the USA