R200k bill due to improper service

I received a bill from COJ/Joburg Water that i owe R200k for account ***. I went to dispute the matter and after investigation they found that they're billing was incorrect and logged for recommendation to settle bill so i may sell the property. The case was created 27/09/2023 with the SLA due on the 11/10/2023 but still no feedback or resolution. I sent several emails to COJ escalating the matter but no response. I have even been to the Joburg Water offices in Newtown on several occasions but they just give me a customer support query form and nothing happens. I am therefore unable to register the house at the deeds office due to this matter and i am not getting any assistance at all.