Cancel Propety

Thanks for your prompt response.  I did click on the link you send and follow the instructions.  Went into my Inbox and tried to compose a new message but there was no such option for me to do so.  Don't understand why they make it so difficult to cancel a listing?  

Thank you very much for your help.  I managed to called Booking.com and they were able to help me cancel over the phone.  I now need to wait 14 business days for the termination letter.  Much appreciated!