Please don't test your biller setup with NATS4 NoCreditCard's test account—it won't work correctly.
Setting Up at NoCreditCard
When registering at NoCreditCard.com, make sure that you sign up as a Broker, as opposed to a Webmaster. You should then receive your BrokerID, which is a 201xxxx number. If you do not receive a BrokerID, please contact NoCreditCard.
Setting Up NoCreditCard in NATS
On the next page, you will be prompted for your Broker ID. This information must be obtained directly from NoCreditCard.com. If you do not have this information, please contact your biller. After filling in your Broker ID, click Save.
On the next page, scroll down to the "Biller Details" section, and you will see the NOCC Site ID and NOCC Media ID fields. Fill in the Site ID that you set through NoCreditCard.com. Under Media ID, type in 00600000 -- this is an internal parameter for NoCreditCard.com.
Once you have done this, scroll down to the "Join Options for this Tour" section and edit the join options that you want to process transactions through. On the next page, locate the "NOCC" fields, and enter your URL and (optional) Offer ID. Save your changes when you're done.