Log into the Mongoose Dashboard.
Select the "Account" tab then select the "View CC Accounts on File" subtab that appears.
You will see the current card that is on file. Before you can add a new one or update the information you will need to delete the current card on file.
To delete the current card on file select "Delete".
Once you have deleted the credit card on file you will see a button appear that will allow you to Add/Update your credit card information.
Click on the "Add Credit Card" button
Fill in your credit card information and click on the "Submit" button to complete the process.