Most of air bnb's policies are unfair to the host, they just want loads of money. I have pointed out many times to air bnb, no host no air bnb.
I have had a few booking who will pay up to 24 hours or groups 4 days, I had a group of 2 doing this when I phoned air bnb they said a group is 4, so how can 2 hold off paying for 4 days not 1, no answer.
Most people who will pay later in fact don't, they have 24 poured a few places & then choose, mean time we have dates blocked off, no there company will do this. Please remember air bnb (bed, not bed & breakfast) was a sofa surfing site...
They keep changing their policies & site, this implies they keep getting it wrong, if it was good the site would not need to change.
I had the joy of using the original owners direct, wow they were good, honest, fairly priced & completely help full, they sold on to a big multi national & are terrible... enough said.
If your unhappy with air bnb, tell them but lay it on, in the earlier days they changed policies I had informed them about (Irish call centre) now they don't seem interested &/or don't understand, the call centre is no longer in Ireland...
However I've been doing this for years & I have a few sites up my sleeve + some new independent site are appearing for the reasons I mention above.