View the video below for a walk through guide on how to add or update your credit card for CLX billing:
How to add a Credit Card for payment
To enter a Credit Card in CLX for billing, the first thing you will need to do is click Setup as shown below.
From Setup you will click Client Setup.
Next, you will click Account Billing.
From Account Billing you will click + add new card
Next, enter in the required fields below.
Once all the fields are entered in click Add Card.