ClearCard
Please don't test your biller setup with ClearCard's test account—it won't work correctly.
Set up on ClearCard's Website
Register at ClearCard. ClearCard will help you set up your webmaster account with websites and membership plans.
You must give ClearCard this URL after your account approval: http://linkdomain/signup/process_clearcard.php
Replace linkdomain with your Link Domain.
Set up ClearCard in NATS
In the Billers Admin, enter your ClearCard Username & Password.
In the Sites admin, under Biller Details, enter your Site ID. ClearCard assigns each site a unique ID; you can find this on your ClearCard "My Account -- My Websites" page listed under Options.
Under Join Options, enter your ClearCard Membership ID. ClearCard assigns each pricing option a Membership ID; you can find this on your ClearCard "My Account -- Membership Plans" page.