Valentina!! Thank you for sharing. I'm going through the exact same thing.
I had a reservation for 4 guests, which ended up being 41 guests. I counted on my surveillance cameras the following day.
This group trashed my house, had a party, smoked cigarettes and weed in my home, and I even found a meth pipe!!!
In my rules, I state- "no parties ", "no smoking", and I charge $40 per person. I sent the request through for the reservation. The guest told me that she was sorry and didn't have any money.
There were several things damaged, missing, etc (one including my stainless steel glass cook top stove.. the top was shattered)
After more than 3 weeks I'm still getting the run around. I don't know what to do!? Every time I contact airbnb, they tell me, "a specialist will reach out very soon. We can't imagine your frustration and thank you so much for your patience" .. then nothing until I call or message again.
How did your issue resolve? It sounds like you were dealing with the same thing that I'm dealing with.