Joburg Water flushed down the toilet!!

So Johannesburg Water joins the list of totally defunct government organisations in my books, the next in line after Eskom, SAA, SABC, PRASA...... on 1st July 2022 a burst water main collapsed my boundary wall onto my carports, crushing 3 trailers, 2 bikes and a car. Joburg water representative, Alpheus Mkhize was sent to inspect and has now supposedly submitted two reports internally so that Nkadibeng Matlabe and Nontuthuko Mdloti can sort out my claim, which is over R150000.00 worth of damage. I have sent no less than 20 emails and about 40 calls now, I am convinced Nkadibeng does not work there anymore as she has had an out of office reply on for 6 months, Nonthutuko doesn't even have an out of office reply, just no response whatsoever. Alpheus takes phone calls every now and then but insists that these two are the only ones that can help - IE you won't get any help!! I am starting to send an email everyday now in the hope that anyone at Joburg water can actually do something about this. Has anyone else had any luck claiming for negligence in the Joburg Water infrastructure maintenance?