Awful customer service

Had booking changed 48hours before we arrived from seafront flat to terraced house. The house was filthy. We complained and got told to use the bedding to clean it as that was what they did on changeover day. We complained to the office who said we should've complained before 9pm on day of arrival (even though we had a busing meeting to attend upon arrival then out to dinner). Spoke to boss about cobwebs, dirt, grease, cracked crockery, broken glass in back door, no light bulbs, hairs in shower, stains on the wall. She was going to look into it and ring back.....still waiting for the call 4 weeks later.
Final straw was waking up to a drunk tramp asleep on the doorstep one morning. We were refused a move or to view other properties.
Customer Service 1/10. Cleanliness 0/10