@Алмаз0
You must contact AirBNB customer service quickly and tell them your issue with that host.
they will probably refund you.
here we are other host and guest helping each other but your case is truly an AirBNB CS one.
and you will be able to give a review of the host on AirBNB, be honest but stay focus on the fact and stay away from the emotions.
Was the bassin in the list of amenities liste on the add when you booked ?
if no, the host does mit have to provide it.
the host can be a company but they must provide you with the exact unit you have booked
good luck
.
Annie