Booking. Com Hotel misrepresentation

Greetings, We cancelled our booking at Armar Hotel in Istanbul. When we arrived at the hotel the room was not in good standing. It was dirty, bedding was smaller than the bed, it was not well represented as the pictures. The room had electrical wires out visible. The door frame was hanging out. The bathroom was filled with hair and the shower was very small for my husband. I am also allergic to paint, the building is going through renovations. We then asked for a refund for the days we have not stayed in the hotel the hotel refused and said they did not care about the Booking. Com policy. We checked out on the 29th October after sleeping in for one night. We spent the next morning looking for a place to stay and had to pay for another place. The hotel policy on Booking. Com state that partial amount will be taken upon cancellation. We would like a refund for the days cancelled. We have also not received help from Booking. Com.