How to Redeem a Google Play Gift Card

Go to this website: Visit the Google Play website at https://play.google.com/store/games?device=windows&code= or open the Google Play Store app on your device.
Log in to your account: Enter your username and password to log in to your Google account.
Enter your gift card code: In the provided field, enter the code from your Google Play Gift Card.
Apply the gift card: Click “Redeem” to add the gift card balance to your Google Play account.
Start shopping: Use your balance to purchase apps, games, movies, books, and more from the Google Play Store.