Filthy Flat and Horrible service

I got a new job in Sandton and I decided to use their services to find suitable accommodation. The application process was pretty standard and went smoothly. The cracks however started to show when I went to Head Office in Doorfontein to sign the lease. The staff there is EXTREMELY rude, the walk around or sit around rather like people are not waiting to be helped and when they do help you, they make you feel like they're doing you a favour... That was something I could look passed. My biggest problem was that before I moved in I asked the agent who helped me apply if the flat would be cleaned post the moving out of the previous tenant, I got a resounding YES. When I moved in however it wasn't the case. The flat was filthy, the kitchen and bathroom had dried up grime, looked like it had not been cleaned in years, the floors were disgusting, everything was dusty and dirty. I have sinusitis, so naturally I HAD TO CLEAN UP A STRANGER'S MESS. I feel disrespected, taken for granted and disgusted. I won't be staying here long though. I wouldn't even recommend this service to anyone. It's disgusting and infuriating.