Is there a limit to payment methods that can be stored? Can a default payment method be stored?

To view a customer's saved payment methods, navigate to the Customers tab and select the customer you would like to view. Next, click the Wallet tab to see all saved payment methods. There is no limit to the number of cards or bank accounts (checks) that can be stored for a customer. If you would like to set a payment method as the default, click the heart icon located in the upper-right corner of the desired payment method. The selected payment method will then be set as the customer's default.