HOW COULD I GET A CLAIM ACCEPTED BY AIRBNB FOR MISSING OR STOLEN THINGS DURING A GUEST STAY ?

[Fernando1561]

I am making a claim  to airbnb claims department,  because one guest took 2 towels and the cooler, it's about 60 dollars, after two weeks,  airbnp people responded  and  they said the claim was not accepted , due to lack of evidence, even  I sent to them a copy of the invoice for the new cooler and the towels, they need   more proofs like pictures  of the lost products, but how would I know they were going to be stolen? can someone help me how to get this  claim accepted I am very worry because when a TV or something more expensive is stolen,  i will lost my money again?