the unit description stated clearly that it was 4 beds as below:
2 beds in the living area
2 beds in the bedroom
when I arrived, there was only 1 bedroom with only two beds, I called him and he told me the error accured because the Airbnb website was viewed in language other than English, and I told him it was in English, and I took screenshots of the rooms discreprtion.
that was a very bad experience and get didn't manage the case well