Date Changed Booking

I have two bookings in this month Nov2020 but guests can not travel due to covid-19. Then I accept to change their new travel date which is in Nov2021. And also make amendment in their original booking to 2021. So it's a new date appear on this reference. I want to know that booking.com issue the commission invoice based on the old booking or amendment booking? for Nov2020 or Nov2021? Thanks in advance for your answer.


Hi as long as you can update the dates or phone BdC to do so,  you will not be invoiced until after they leave