Is there a way to switch credit/debit card on Google Play?
Have you tried these support instructions?
Update a Card
- Sign in to your account at https://wallet.google.com/manage.
- Click Payment methods along the left side of the page.
- Click Edit next to the card you would like to change. Once you've made the desired updates, click Save.
- If you'd like to use this card as your default payment method, click Set as default next to the card.
- Click Save.