Hello Jillchristinelucas,
Thank you for the question. It sounds like you do not want to add a credit card to your Apple ID.
I suggest updating your billing information to "None" using the steps in the following article:
iTunes Store: Changing your payment information
http://support.apple.com/kb/ht1918
If you aren't seeing the "None" option when updating your billing information, I recommend the following article:
Why can’t I select None when I edit my payment information?
http://support.apple.com/kb/ts5366
Thank you for using Apple Support Communities.
Best,
Sheila M.