Please don't test your biller setup with Edelweiss Card's test account—it won't work correctly.
Setting Up on Edelweiss Card's Website
While registering with Edelweiss Card, make sure to take down the Merchant ID, API Username, and API Password that they provide for you. This information will be necessary for setting up Edelweiss Card in NATS3.
Setting Up Edelweiss Card in NATS
When prompted, fill out your transaction and chargeback fees, along with when you wish to deduct them. Fill in the Merchant ID, API Username, and API Password that you received from Edelweiss Card under the "Account Info" section. If you were not provided with this information, please contact your biller to receive it.
Next, go to the Sites Admin, create or edit a site, and scroll down to the "Biller Details" section. Find the Edelweiss Card settings, and enter the Days to Retry Card box. Edelweiss will try to rebill a member's credit card for this many days before cancelling an account.
Once you have done that, scroll down to the "Join Options this Site Offers" section and create or edit a join option to add Edelweiss Card compatibility. Under "Biller Codes for this Join Option," select your desired default currency for transactions with Edelweiss Card.