Once a credit card or eCheck has been saved on file, it becomes encrypted and cannot be changed in the back end. The saved payment method can be replaced, deleted, or additional payment methods can be added. To change the user's payment method, click on the center number by the user to view their "Payments" tab, which displays a list of their transactions. Then click the "Process Payment" button. 
The option to add a new payment method or delete the payment method on file will appear
Process a payment to save a new payment method by clicking Enter a New Payment Method --> enter the payment information --> click "Issue Payment" then confirm.
Note that you will not be able to adjust the payment method until the user has a balance due. Otherwise, the checkout page will display the message "Congratulations! You have no outstanding balance." and no action can be taken. If action is needed immediately and there is no balance due, please email us payments@regpacks.com and we can advise.