1 Olga Leifrid cancelling reservation Dear Booking, I need to cancel the reservation on because the apartment is just booked by other guests. 7 jaybeegee Hello and welcome to the partner forum which is the place where owners share tips and advice! Unfortunately for your particular problem we clearly cannot help you and you need to reach out to the bdc support desk directly via telephone or extranet email. I can assure that it is not as simple as sending them an email and the problem goes away! GL!