To remove a credit card or other payment method from your Google account, go to the Google Payments Center or the Payments & subscriptions section in your Google account settings.
Click on Edit to change the details of the added card, or click on Remove to remove it.
If you can't remove the card, add another card to your account, authenticate it if necessary, and then remove the original card.
If all else fails, consider canceling subscriptions, blocking or canceling the card with your bank, and obtaining a new card.