I'm looking to expand my business.  The service costs $300.  When someone refers a client who pays, the referrer will get approx $30.  The referrer might use an email link or link on their website for the client to click on.  

I'm looking for companies that can handle NZD payments.  I've heard of ClixGalore and tapfiliate but don't know much about them.

Here's a business with something similar to what I'm doing:  https://kickresume.tapfiliate.com/publisher/signup/publishers/