Login to your account at: https://control.appliedi.net
Once you have accessed the main menu, click Billing.
Next, click Manage Credit Cards.
Click Add New.
Complete the form (including Friendly Name and Card Type) then click Next.
Enter the Card Details and Card Holder Details. Next, be sure to check the Default Credit Card checkbox and click Save.
Finally, the control panel will display that the credit card has been added.