Value added Tax (VAT) at the current rate is added to all Provider-one.net invoices for domain name registration and hosting services. This applies to both EU countries and non-EU countries.
This is a ruling by HM Revenue and Customs because the service is supplied in the UK and not the country of the ISP or registrant.
You may be able to reclaim VAT in your own country. Please see the web site at http://www.hmce.gov.uk/forms/notices/723conts.htm for details.