Check your invoice as emailed... it sounds like it will show ComputerUniverse as the seller rather than Amazon. In that case, unfortunately you are liable for VAT and customs charges in addition to the price you pay at the checkout. AFAIK, only "sold by and fulfilled by Amazon" orders have a VAT+customs deposit included in the checkout price.I received this 2 days ago. Ordered on Amazon.it for €494.78, but delivered from Germany. No biggy right; HMRC hit me with £64.19 VAT before it could be released for collection and it seems the distributor computeruniverse GmbH(German supplier I'm guessing Amazon.it sourced it through) did not declare any VAT on their invoice accompanying the monitor. Further more, the gross total on the printed invoice was €371.65. So I guess either they owe me £64.19 or €123(approx. £106)
You have to be really careful when buying from any Amazon store (inc UK) that you're not buying from a marketplace seller, that you're really buying from Amazon. You have to click the "8 new and used from €495" link to show all the sellers.