Genius Upgrades and discounts
I've just had a reservation paying £79.50 (a Genius discount on my advertised rate of £90 for my normal double room). In addition to the discount, the guest has been upgraded to my best room (superking, with private en-suite and dressing room), which I normally charge £140 for!
This is to let you know that you can deselect this option (click on Genius Partner Programme, then home, then deselect the option to upgrade, whilst continuing to offer Genius discount).
This has been a very expensive learning curve for me, as this booking falls into a period where I make enough money to compensate for quiet times.