Guest theatens bad review unless they get a refund
My question is what can you do if a guest threaten you with a bad review unless you give them a refund?
I note that some refunds are genuine, but then you get some guests who say "I do not like to complain, but" and then come out with a list of complaints after they have left the property. They then say "I want to hold off my review until these complaints have been addressed."
Basically I see this as blackmail. Is there a recourse for hosts? Or is this simply a loop hole that guests have found in the Booking.com system that hosts are vulnerable to.