Issues with Host

I had to clean the bathroom last night before shower. How do I get the cleaning fee back?

My second night here and the host are apparently more relaxed as they have decided to start arguing with each other down stairs about their relationship dynamics. I hope they’ll stay quite.

How would I cancel tomorrow night and not get charged it?

This is an international forum for hosts.
I strongly suggest you call Airbnb customer service and I assume you have clear photos of your issues with the bathroom?