The site is really based in Holland, orders are not sent from there but from China or other not EU countries.
Normally they take about 10 days for delivery.
There is also an Italian site www.batteryupgrade.it but it's only the same site translated in Italian...
I bought two from an ebay seller in Hong Kong last year. I was dubious at first but bought on the basis of ebay's money back guarantee. The batteries are fine and I'm still using them. The seller's shop currently says they are away till 22nd February, so no products are listed, but could be worth watching the site. The batteries took about a month to arrive.