The guest -- Ribel and three friends -- had auto-booked two reservations back to back. Given the change-over day requirement between bookings, the Airbnb system did not charge him for one night in between. In the Airbnb communication exchanged with Ribel early on, I agreed that the guest could stay without the interruption and pay for the extra night after arrival to our house manager (as we reside in the US). The day before check-out, the guest sent me accusatory messages threatening to post negative reviews to avoid making the outstanding payment. I referred the matter to Airbnb for assistance, and although Airbnb issued me the payment for the extra night due by the guest, the main issue of extortion affecting the review process has not been addressed as of yet -- despite clear policies to prevent such abuses. Over the past nine years, we have welcomed and hosted more than 100 groups of guests -- who have respected and enjoyed our home, as evidenced in all other reviews (on three different sites). During this time we had not experienced such a negative situation and are baffled by Airbnb's lack of adequate response (despite having access to the evidence written within Airbnb platform). If it weren't for the 99% of the wonderful people we have encountered in the Airbnb community, we would have likely closed our listing on Airbnb for lack of judgment, fairness, and accuracy in the feedback process.