Hi all - we too are having the same problems with bookings from Agoda via Booking.com. Working with booking.com is great. Their support staff are so pleasant, responsive and knowledgeable, but they can't fix the problem of us receiving bookings from Agoda with no contact details for the guests. The support staff did email us and tell us how to recognize an Agoda booking - the phone number on the booking advice will have symbols such as & %2B - There is also an email on the booking advice, but we know from experience that guests never receive the emails we send them. So apparently both the phone and email are useless. The only way we have been able to contact our guests is to ring Booking.com support to have them contact Agoda in order for us to (ideally) get guest contact details - or (basically) ask the guests a question/agoda contact the guest on our behalf. THis is such a waste of time and resources for both us and booking.com support. I can't understand why booking.com puts up with it!.