UPDATE: This is part of a response from Airbnb customer service, which has no apologies for the situation and sounds like they're leaning towards defending the

UPDATE: This is part of a response from Airbnb customer service, which has no apologies for the situation and sounds like they're leaning towards defending the host. "We got the news from [host] that the place is clean and ready to welcome you. In order to claim a refund we will need to receive documentation regarding the cleanliness issues. At this point there is no confirmed hosting standards violation therefore we will not be able to penalise our host and refund you."