Contaminated Water No Assistance

I had a leaking water meter, I logged a fault and the technicians came and fixed it. But same day after they fixed it, no water was no longer running into the house. The water has soil residue which shows somewhere the pipes were not properly joined or has a leak. Everyday I try to keep the water running for half an hour to an hour trying to cleanse the pipes but no luck. Everytime I log a fault the technicians open the tap, they see clear water, they dont bother to pour the water in the cup to check if there s soil residue. They never show up during promised hours since I am employed and there is no one at the house. They do that so they can close the fault log. They do not have any sense of urgency. Everytime they close the fault or report back or call me, it shows they have no interest they want to tell me what's the problem they don't want to listen what the problem is and then try to assist. Everytime they say the water is clean and then close the fault, which shows lurk of interest, the fault is not only about contaminated water but also no distribution of water into the house and toilets anymore. Reference numbers close with no resolution are ***,***,***