DXRacer.net isn't the official EU site despite their misleading advertising/branding to the contrary.
Up until last year they were one of the few sites stocking some DXRacer models and shipping to EU countries. My understanding is that that it had some sort of "semi-official" relationship with DXRacer in the US as an EU reseller until DXRacer opened up their official EU site, which sells direct and also distributes DXRacer's EU stock out of their base in Sweden to sites like OcUK.
The official DXRacer EU site is:
http://www.dxracer-europe.com/
Official DXRacer EU Twitter:
https://twitter.com/DXRacerEurope
All the legitimate DXRacer stock on the dxracer.net site that is actually in stock are older model / EOL DXRacer chairs that they've presumably sourced elsewhere and this "new" DXSeat range they're pimping is a knock-off seat made in Poland that they're trying to piggyback off the official DXracer brand.
The official EU DXRacer site doesn't have as wide a range of stock as the US site, but if you can't get the chair you want from a reputable site like OcUK I'd only go via the official site. I ordered one of the new Max series chairs (with updated King Series base) in June 2015 from the official site (OcUK didn't stock the latest model at the time) and it took about 6-8 weeks to ship out. Apparently DXRacer own the factory in China that builds all their chairs and they're seemingly struggling to keep up with demand - the US definitely appears to get first dibs on the bulk of the stock from the looks of it.