price settings and price that booking advertise to costumers

we set a price in our admin and when we go to booking to book our accomodation 


booking reduce the price them self they are telling that they paying this reduction


but when we see the price on our reservation form we have to pay commission on the full price we set not the price the costumer pays


this i think is not right of you booing.com


if you are telling you will pay the reduction is not that we have to pay it??