Check the Clear Card payment solutions website Clearcard.com. Find all the information required here about Clear Card products and services, the company and it's history. Web merchants are able to accept and process real-time payments for purchase of goods done over the internet with the help of the secure transaction services. ClearCard looks after the customer service, fraud control, shopping cart functionality, reporting, tracking apart from sales transactions processing.

It offers complete payment options online that includes credit cards and checks.
You will find info here for
online merchants selling products and services online
Info about Rates and Disclosures
Merchant Relations FAQ & Merchant Features

Check the support section - developer's resources and customer service.