Airbnb Guest Stole from me

I had a guest for one night, who walked away with a few items, including: TV, air conditioner, coffee machine, toaster. I have contacted the guest on his mobile – the man who answered said he’s never heard of Airbnb. I contacted the police, who asked for any traces that might help the investigation. Then I contacted Airbnb. They absolutely refused to provide me with any clues as to the guest’s real indentity, and said they will “run their own investigation.” They asked me for the police report, which obviously takes a bit of time to come through, and 48 hours later closed the case indefinitely. More over, they did not even transfer payment, which they have collected from that guest. On that basis that, I have opened a legal case. This is insane. If anyone knows an alternative to Airbnb I would love to hear it.