Power Quality Issue City Of Johannesburg.

I have logged calls with the COJ for a power problem. The issue being that the current feed of power being supp**** to my residence being very low. Constant 207 volt, at times dropping to 189 Volt. Each time the calls are closed with no feedback. I had one contractor from COJ that attended to the call, he confirmed it looks like an external cable fault for the area He also confirmed the low voltage supply from measuring the outside power meter of my residence. . Due to this issue I have had several of our electronic devices that have blow. Including our solar system. The damage to the system is over R100 000. I logged follow up call and still no joy. Calls reference is CPWEB***. I am not even being contacted or given any type of feedback. The contractor informed me that COJ is in the process of renewing contracts and working on a manual system. Due to this issue I am unable to have my system fixed or replaced until the power feed is repaired. I just logged another call with reference number CPWEB***.