i have no credit card

I want to kknow too

Me too

I NEED AN UNSWER IF I DONT HAVE A CREDIT CARD

I spoke with Apple Tech Support and they guided me through this. I was trying to get the App Store working on a new iPad mini using a new, but existing Apple ID. To get it to work, I had to go onto iTunes on my main computer (not on the iPad). I had been trying to use the Sign In button, and I was having the issue of being "forced" to enter a credit card, which I did not want to do. Here was the solution I was given, which worked for me.

1. Log out of iTunes, if you are not already. (Or hit Cancel if you're on the Review Payment screen.)
2. Instead of going into Sign In, go to Redeem under the Quick Links, on the right-hand side, down a bit.
3. Go through the screens, accepting the EULA, etc. You will get to a Review Payment screen, similar to the one you saw before, but it will have a None button.
4. You can enter an iTunes card here if you want, but I was able to leave that field blank and still successfully get the account set up, ready to use on the iPad.

on the compurer or ipad