I assume it's Panamoz.
You may or may not know, that their stock are so called 'grey imports' and so are not UK stock. They say they pay the import duties which some grey importers don't. If you are considering grey importers though there are others out there which may or may not offer deals as good. As always with grey imports be aware of all your options should things go wrong, which fingers crossed it never would
I bought a Nikon D200 many years ago from DigitalRev on eBay, and part of the deal was that they would pay any Import Duty charged, which it was, and I had to pay, but they reimbursed me. At the time I was unaware that Nikon would not have fixed the camera had anything had gone wrong as it was an import. Luckily nothing went wrong with it.
Camerapricebuster is a good place to look for UK stock prices.