How to redeem Xbox Games Studios card:
How to redeem the card using your Xbox Series X|S or Xbox One
1- Press the Xbox button to open the guide, then select Store.
2- Click on the offer button to open the side menu, then select Redeem.
3- Enter the 25-character code, select Next, then follow the instructions.
How to redeem the card using your Xbox 360:
1- Press the Guide button on your controller.
2- Select Games & Apps, then select Redeem Code.
3- Enter the 25-character code, select Next, then follow the instructions.
How to redeem the card using a PC or mobile web browser:
Enter the link: https://redeem.microsoft.com/
2- Enter the code you obtained, then follow the instructions.
How to redeem the card using Microsoft Store on Windows:
1- Press the Start menu button, then enter store in the search box.
2- Choose Microsoft Store from the results to open the application.
3- Select your account in the upper left corner of the screen, then select Redeem Code or Gift Cards.
4- Enter the 25-character code, select Next, then follow the instructions.
To know the terms and conditions, go to: https://www.microsoft.com/en/servicesagreement/