As a Super Host I have always given people the benefit of the doubt.
I live in the UK and have been unable to fit my new WIFI lock and therefore have a standard key box.
I gave the guest the key code & address the key code and address on the Thursday evening at 7pm(UK Time) not realising it was 2pm (ET) .
The guest has therefore driven from Arkansas and taken advantage by using my calendar.
Hindsight is a great thing and in future in will send details on the day of check in until our new lock is fitted.
In the messages between me & the guest , at no time does he mention uncleanliness of the house , only when I asked for the extra night did he run to airbnb with his fictitious story.