Please don't test your biller setup with Protx's test account—it won't work correctly.
Setting up on Protx's Website
While registering with Protx, make sure to take down the VSP Vendor Name that they provide for you, and make sure to take down the currency that you configure with them. This information will be necessary for setting up Protx in NATS3.
Set up Protx in NATS
When prompted, fill out your transaction and chargeback fees, along with when you wish to deduct them. Fill in the VSP Vendor Name that was provided to you by Protx under the "Account Info" section. If you were not provided with this information, please contact Protx with your merchant number and they will provide it for you.
Next, go to the Sites Admin, create or edit a site, and scroll down to the "Biller Details" section. Find the "protx" settings, and enter the Currency type that you set up with Protx. For example, you can input GBP, USD, or EUR. This information should have been provided to you by your biller.