HI - and thanks in advance. One of my 1st 3 bookings (so they got the AirBnB recommended promotional discount for 1st 3 bookings) has decided to extend their stay by 2 days. When I sent a reservation change the AirBnB system calculated a price which I thought was fair….they appear to have kept the 15% discount for the 4 days, and then my standard >=5 days discount of 5% seemed to be calculated for the extension 2 days. This morning, the guest has confirmed the extension, but it appears that AirBnB has given them the 15% discount for the entire period, which if memory serves me correctly is not what was calculated when I initiated the reservation change. I am well past my first 3 books, so I would have thought that the calculation should be made on the current rate.