To add or remove a credit card from Google Play for your Android phone you sign into your account at https://checkout.google.com/
Select Payment Methods
- Here you can add a new credit card by pressing “New Card”
- Remove a card by locating the credit card, most cases you’ll only have one card and click delete
- If you want to change a card, locate the credit card and press edit. Note that you can only change the expiration date. If you want to change to a new card, you’ll have to delete the old and create a new.