Sorry not clear from your post what damage was done to your property and why did Airbnb turn down your claim @Leslie718 ?
sorry to hear you had these fraudulent guests - what were their previous reviews like? What vetting questions did you ask before accepting their booking?
local government is introducing restrictions as a result of STR rentals being used for parties , prostitution and drugs
so as hosts we need to be vigilant in vetting guests and monitoring our listings through CCTV etc to ensure our properties are only being used by guests who have booked .