My father is trying to set me up with Xbox Gold Live so I can play with a friend 300km away. On my login I get to the place where I choose the month free trial, and it says I need a credit card to continue. I don't have a credit card and he doesn't want to put his credit card on my account. I can understand redeeming for going forward, but how do I start it up and try it for a month and if he's happy he will then give me vouchers for redeeming $ and using this to keep my subscription. Please help me set this up.