Method 1:

1. Click your profile picture at the top right of Google Play Store.

   

2. Click the “Payments & subscription”.

   

3. Press the “Redeem code”.

   

4. Enter the code provided then press the “Redeem” button.

   

Method 2:

• You may use the deeplink to directly go to the Google Play website redeem code page

Link: https://play.google.com/redeem?code=