I had a guest a while ago, my first guest, and I received his payment in cash because I hadn't set up my online payment system yet. Consequently, I haven't paid my commission fee, and I haven't received any reservations since. Is this due to the unpaid commission fee? If so, do you have any ideas on how to resolve this issue? Additionally, is there a way to pay the Airbnb commission at the end of the month, similar to how Booking.com allows for a one-time payment?