18 Night stay at a dirty, broken place. No refund

Found a place of theirs on Booking.com, Four Seasons 806 - and it was not like the pictures. It had broken furniture and tiles, it was dirty and unhygienic. During the COVID pandemic! I asked for a refund as the reality does not match the pictures and they patronizingly told me they'd send someone to clean. Amazing! I want my money back. 18 Night stay, R7000, is not small money.