What kind of Xbox Live Gold trials are eligible?
You’re eligible if you’re on an Xbox Live Gold one-month free trial.
If you’re on a 14-day prepaid code trial, you’re not eligible. You must have a current Xbox Live Gold subscription or trial that requires a credit card.
Redeem your Membership Card on your Xbox 360 Console:
1. Sign into Xbox LIVE.
2. Click the Xbox Guide button located in the center of the controller.
3. Navigate to the Marketplace tab. Select Redeem Code.
4. Enter your 25 digit pre-paid code and enjoy!
Redeem your Membership Card on your computer:
1. From Xbox.com, use your Windows LIVE ID to sign in to your Xbox LIVE account.
2. Select My Account from the My Xbox drop-down menu.
3. Click Redeem Code to enter the pre-paid code for the content that you want to redeem.
4. Follow the instructions that appear on the screen to enter and confirm the redemption on the pre-paid code.