You buy a gift card (code) to top up your Minecraft Minions account
Activation via a Web browser:
-Launch a web browser and go to: https://redeem.microsoft.com
-Log in using your Microsoft credentials.
-Enter the activation code and click "Next"; follow the instructions to confirm.
If he writes: "It looks like you have already purchased this product," then just go to the main market, and then close it and re-activate
