I am just experiencing the same thing, I had a guest from HELL , he booked for 2 people, but i ended up with two german sheppards and a turnstile of guests thru out his 28 day stay, and my cleaners, had to spend 3x the time to clean (dog fecies included) and we had to hire a steam cleaner and i was able to put in a claim for the damage, but they (airbnb ) keeps saying i cant claim the cleaning and extra guests and the two dogs, and they will send my email to the " correct" airbnb dept, I have reminded them 4 times in the last 4 days i still havent heard from this department ..
and i cant seem to navigate the useless Airbnb site to locate this ' department'