Please don't test your biller setup with E-Pay Company's test account—it won't work correctly.
Setting up on E-Pay Company's Website
While registering with E-Pay Company, make sure to take down the Affiliate ID, Site Name, and Biller Code that they provide for you. This information will be necessary for setting up E-Pay Company in NATS3.
Note: E-Pay Company has also provided a NATS setup document.
On E-Pay Company's website, go to the E-Pay Company Admin, find the Pay System Settings, and click the Set Websites link. Enter the following URL into the "Control URL" field:
Replace linkdomain with your linkdomain.
You can enter two URLS in the Control URL field. One URL is the Postback URL you just entered; the other is a redirect to your members area. Separate the URLS with a pipe character ("|"). Do not put spaces between the two URLS and the pipe.
Make sure to record the Site ID of every site you setup.
Setting up E-Pay Company in NATS
When prompted, fill out your transaction and chargeback fees, along with when you wish to deduct them. Fill in your Account ID (AID) under the "Account Info" section. You can find your AID in the User Details section of E-Pay Company's website.
Next, go to the Sites Admin, create or edit a site, and scroll down to the "Biller Details" section. Find the "E-PayCompany BV" settings, and fill in the Site Name (Site ID) for every site you set up with E-Pay Company. This information should have been provided to you by your biller.
Once you have done that, scroll down to the "Special Payment Options" section and choose E-PayCompany BV from the "Biller" drop-down menu. Enter your desired Join Form Text that you want to display in the "Join Form Text" field. Put a space in the Biller Code field, and click Save. E-Pay Company should now be configured for use as a biller in NATS3.