My lodger was originally scheduled to move out on the 18th of June, which is today. However, a couple days ago, she requested to change her move-out date to Thursday, the 22nd. I expressed my concern about the short notice and informed her that I had already rented out the room on Airbnb from Monday, the 19th, until Friday, the 23rd. I proposed that if she was willing to cover the difference in the nightly rate (only from Monday until Thursday), I would cancel the Airbnb reservation and allow her to stay until Thursday. She responded by stating that she would move out on the original date, the 18th, but would confirm it in the evening.
Later on, she texted me that "she will be move out by Monday, the 19th, and that a cleaning company would come on Monday at 1pm to clean the room and remove stains from the carpet but she is not sure what time they will finish. Her rent is due on the 19th of every month. Should I deduct the cost of one extra day from her deposit due to her change in moving out from the 18th to the 19th?