Originally Posted by
jonboy73
At first I thought the same, then realised you need to pick the "secret 5*" hotel, you can easily see it is the Sofitel by the matching number of reviews.
I can also confirm that I have just booked 2 stays, 1 night each and paid only £89.56 for each night, including amex fee.
Many thanks to darthlemsip ^
No problem
Have bolded the secret 5* bit in my OP to bring attention to it...