I booked a room for 6 nights and paid for it. However, the host asked if I could only stay for 5 nights. I didn't want to, and I wondered why the room was available for 6 nights if I couldn't stay for that long. Then, the host suggested that I could stay for 5 nights and sleep on the sofa for the last night, and they would only charge me for part of the room fee. I agreed to this. However, in the end, the host found various excuses not to refund me for the last night, even though it was only a small amount of money. It made me feel bad. Their reasons were that I booked the room for my husband, and they believed that whoever booked the room should be the one staying there. I don't understand why there would be such a rule on Airbnb. Also, the host complained that the toilet was dirty and had not been cleaned, but I don't understand if the room fee includes a cleaning fee, why the guest should still have to clean the room?