How do i add money to my itunes account from my iphone?
To add money to your iTunes account via your iPhone, you go to the iTunes store. Go to the settings in your account and put your password. You will find a list of ways to pay, and after choosing the one you wish and follow the instructions given.
Yes, you go the ITunes app, find the redeem button and enter the code on the back of your card.
You want the App Store. Go to Featured and scroll to the bottom. The Redeem button is there, just follow the prompts.