Q: can i use my devices without accepting your demand for my credit card?

1. This is a user to user forum, You are not talking to Apple.

2. This is the iPod Accessory forum. for questions with things like earphones or chargers.

If you have an issue with iTunes or your account the iTunes forum may be more adequate. I'll request your post be move to a more adequate forum.

With that said:  You can create an Apple ID without a credit card if you so require.

Create an iTunes Store, App Store, or iBooks Store account without a credit card or other payment method - Apple Suppor…

Beyond that, you will have to be more specific about what issues you are having. iPod accessory usage such as earphones  does not require a credit card.