Nothing good about this place

When I arrived there were two people in the apartment rummaging through it so this confused me and I thought I had come to the wrong place. I called Sam and she was aware that there were people in the flat but did not mention this to me. She claimed the flat had a sign for studio but my booking clearly stated apartment 2, she was rude and unhelpful and said she could not help me. The flat was not cleaned before I got in. The dishes and the floors and the shower was dirty. The toilet was used and not flushed. The property can’t be accessed from the front.