If you want to add your credit card to CabMD to begin billing for your use of the service, then please follow the steps below:
Step 1 - Click the Account Menu Item
When you login to CabMD, please use your mouse and click on the item "Account" from the left-hand menu (also called the main menu).
Step 2 - Click the "Billing Settings" Menu Item
Then click on the "Billing Settings" sub-menu item, this will navigate you to your account billing settings page which has all the credit card options on it.