From [this page](https://www.bitprime.co.nz/how-it-works/#fees ):

> Our fee structure is different to that of a brokerage or exchange. As a retailer, our expenses are generally higher than a sole crypto trader’s.

So apparently not an "exchange platform", but rather a "retailer".

Presumably they're trying to cater to less-technical folks who'd pay extra for the convenience/ease.

> What you see is what you get! Our advertised rates include ALL fees, and the price agreed upon at the time of purchase is fixed regardless of what happens in the market. Our fees appear slightly higher than exchanges because we have done all the hard work for you – with education and support to help get you started, and no need for you to deal with multiple exchanges or currency conversions.