Are u afraid of giving ur credit card number on the web?
you don't have a credit card to make an itunes account

Dont woorry cuz the solution is here
I searched on the internet for thissolution like a million times and finally i found the best and the most easiest guide

here is the link

if the redeem link is not in ur country's itunes store then make an account on the u.s itunes store like i works fine

well plz hit the thank button if it helps you