Card details may be displayed if the customer has previously made purchases with the card in Google Play.
1. Open the Google Pay app.
2. You will see the card.
3. If you wish, you can link it for payment.
4. To do this, choose the desired card and click on the “Set up”.
5. Enter your card details and accept the Terms and Conditions of Use.
4. Confirm your details.
Done! Now you can make purchases with Google Pay.