Hello, most of the 1-for-1 and sales are offered by the respective booking sites for a particular duration each week.
I update this page every week in time for those weekly sales.
As you are checking on a Tuesday, the sale prices are already gone and regular price applies. You may check again on Thursday or Friday. Also need to point out that it’s a different set of hotels each week and bookings for stays in the very near future like during school holidays usually don’t come with the promotional price. Hope this clarifies.