You can purchase physical or digital gift cards from various retailers. These are ideal if you want to pay with cash or give the credit to someone else.
To buy Google Play money (also known as Google Play credit or balance), you can either add funds directly through the Google Play Store app or purchase a gift card from a retailer. 1. Add Funds Directly (App Only) how to buy google play money
(this may appear as "Add funds" in some regions). You can purchase physical or digital gift cards