The website www.esta-registration.co.uk supposedly belongs to a company named Sherpatec with offices in Munich, Geneva, Hong Kong etc but it is a total fraud - no email address works. Please be careful - this is an extremely clever operation.
Online users who have already submitted their credit card information on the fraudulent website are asked to contact their banks for help immediately. They should let their banks know that they have used their credit card on a fraudulent website. They should also check their credit card statements for unauthorized transactions and report them to their banks.
What is an ESTA?
International travelers who are seeking to travel to the USA under the Visa Waiver Program (VWP) are now subject to enhanced security requirements and will have to pay an administrative fee. All eligible travelers who plan to travel to the USA under the Visa Waiver Program must apply for travel authorization. For this reason, the US Department of Homeland Security (DHS) introduced an electronic method - ESTA (Electronic System for Travel Authorization). We recommend applying for ESTA 72 hours prior to departure.
For more information about ESTA, click or visit the following link: https://esta.cbp.dhs.gov/esta/.