@MariaTeresa6 Call AirBnB and ask that they remove the guests immediately they are voilating both your rules and the builds with a safety issue. You'll have to refund the unused days, but get these guests out. They clearly are doing anything they want and you are going to get into deep trouble with your building because they obviously are not going to listen to you. Explain to AirBnB you told them no because of the buildings rules and it being a fire hazard making it an eextreme safety issue. Do not let them talk you into allowing them to stay. I am sure your building would back you up on their removal. These are entitled guests who need to be gone. Money be damned. Can you go to the unit? It would be best to be there when they are told to leave and the reservation cancelled.
AirBnB Portugal +351 30 880 3888