I arrived at the hotel to find my room had no window and the bathroom no ventilation. First — can such a room even be a hotel room? Second — I stayed without objecting; can I still ask for my money back?

Under the regulation, bedrooms must be designed to receive natural light — a window is a minimum requirement, so no, such a room cannot legally be a hotel room. Consumer arbitration committees may decline to order a refund for a service that has been used and consumed, but we suggest trying anyway. In any event, our advice is to complain both to the Ministry of Culture and Tourism and to the Ministry of Trade.