I had a reservation with treatment for two on 27-28th December as a birthday gift to my wife, with the treatment booked for 27th evening, at 17:30 and 18:00 respectively. Upon arrival we were told that our spa/treatment was actually scheduled on the evening of 28th, 6 hours after the checkout. Unlike the booking confirmation, the spa have never sent us any email with the date of the treatment, so we could not uncover the issue before we checked in the hotel. Booking the treatment on the 28th evening was absolute nonsense since the person who made the booking over the phone knew we were only staying for a night, very poor communication between the spa and reservation team.
We have talked to the spa staff and the receptionist, and both told us that the spa was fully booked and there was nothing they could do. If we wanted to get the treatment, which had already been paid for, we would have to stay in the hotel for hours after the checked out. This was not an option for us as we had plans in London.