Stainless Steel Wall Mounted taps Mixer with Wall Outlet 24cm for Basin Bath

Showed this to my plumber, he was horrified that there was no fittings that come with them, there are machined threaded parts, but no bolts supplied, no support for the tap outlet, no fitting instructions, etc,All in all I thought I was saving a few pounds, but going to cost more getting the right fittings, also emailed the company and got a few lines and fitting instructions for a completely different fitting that does not resemble the ones we bought ( I bought 2 sets)They is no customer help