City Property *** service

The client service at city property is really unprofessional. I have been staying at their property for 2 months now, yet my lease agreement has bot yet been loaded. I am struggling to connect to the wifi as it is blocked due to the previous tenant's debt, I don't see how that is any of my business. I have complained a thousand times to the building manager but she is not even lifting a single finger. I have paid 6 months in advance but now I'm being told I owe R12k which we don't understand how as I'm still new and not even registered. Now I am being told that people want to view my flat. How when I have paid? Mxm this is the worst choice I have ever made!