I had a prospective guest send me a message with his reservation that said: "Can you lower your price to __________. If so, I can guarantee you a 5 star review." I didn't like the manipulation inherent in this so declined the reservation thinking the person would find somewhere else to go. But then they did Instant Booking at the price I had listed (which was just $15/night more). I'm a superhost and have a 4.9 average rating and am concerned that this guest is going to blackmail me for not lowering my price. Has anybody delt with this before?