Within your customers details you are able to either add or manage multiple payment methods.
Before any payment method is added you will be able to add Store Credit to a customers profile. Store credit can be used to pay for orders. If this customer should be credited.
Once a payment method is added to a customer profile you will see the following information:
Cardholder - This is the name on the credit card that has been added
Card Number - the credit card number will be displayed in the format **** **** **** 1234
Expiry - This is the expiry date of the credit card
Default Method - If there are multiple credit cards associated with a customer, the default payment method that is selected will automatically be chosen during checkout.