If you need to store payment in our Customer Portal please use the following steps.
Login to the portal here: Login to Portal Here
Step 1: If this option was activated on your account, you should see a "Stored Payment Options" click on the Manage button as shown below.
Step 2: Press Add a Credit Card button and add your payment info. The payment is processed by Stripe and we do not save any of your credit card information as per PCI Laws.