The Cranley Hotel, London review: Hotel reservation

Dear Sirs,

I am complaining about The Cranley Hotel in London, for their lack of response after several attempts from my side regarding an unused reservation.
Summarizing the facts and exchanged emails:

-On February 13th, 2020, I made a reservation for 2 rooms/ 7 nights (booking SYN364-53015), for which I paid 1523.94GBP.
-On March 30th, 2020, I informed the hotel that due to COVID traveling restrictions, I would not be able to travel to England and that the reservation would have to be postponed.
-On that same day, the hotel wrote to me proposing to move the reservation to April 2021.
-Still on March 30th, 2020, I replied, accepting their proposal.
-On February 26th, 2021, I wrote to the hotel again mentioning that due to new COVID restrictions imposed on travels into the UK, we would need to postpone our stay one more time, proposing to consider April 2022 as a tentative date.

-After several attempts from my side to have an answer, the hotel replied on April 7th, 2021, proposing (as I had) to move the reservation to April 2022. I promptly confirmed the acceptance of this change, via e-mail sent on that same day.

-On February 7th, 2022, I wrote to the hotel asking if we could confirm our reservation for April 2022. They did not reply to this e-mail.
- On February 26th, 2022, I wrote the hotel again, asking for their reply. They did not reply to this e-mail.
-On June 16th, 2022, I wrote the hotel again, asking for their reply. They did not reply to this e-mail.
-On October 17th, 2022, I wrote the hotel again, asking for their reply. They did not reply to this e-mail.

And here we are today, me having paid 1523.94GBP for a reservation that I didn’t use while they have chosen to ignore my repetitive attempts to get in contact.