Booked a room on the 11th June2020 to stay at the Hilton Garden Inn, Birmingham UK believing I was on the genuine Hilton site. Due to Corvus-19 I needed to amend booking from 6th December 2020 to 6th April 2021. I tried to do this(3rdSept) via the Guest Reservations website but they emailed (Customer Care and Escalations) me saying that due to the hotels cancellation policy I could not do this. I sent a further email on the 8th September stating that this was not the hotel's current policy but there has been no response. I sent a follow up message to their Customer Care and Escalations yesterday (17th September) and, as yet, no reply. I have spoken directly with the hotel in Birmingham who have confirmed that a booking does exist In my name but any amendment must go through Guest Reservations. What now?