On Your Xbox Console
1. Press the Xbox Button – Open the guide.
2. Go to Store – Select Redeem Code under the Profile & System tab.
3. Enter Your Code – Input the 25-digit code and confirm.
On the Xbox Website
1. Visit redeem.microsoft.com and sign in.
2. Enter Your Code – Input the 25-digit code and click Next to confirm.
Your balance will be added to your account