Unresolved claim

In November last year we had a problem with the geyser which was overflowing, the plumbers came over and changed the valve, that evening when we opened the taps and showers the pipes all were shattering and in return the shower head and pipes in my house were broken. When we call the plumber back he said that he has no idea what would have caused this, We advised STD and they sent Kwikot to have a look who said that there is a faulty sink/tap, we had never had a problem with that basin and ever since then we have closed the basin tap. The laminated floors in my bathroom has still not been done from January. The overflow started again yesterday, I had called Kagiso who said a plumber will come out, and no-one did. Today when I called Andisa and advised her that we need the plumbers to come out but do not want the previous plumbers who did as they have not resolved anything. She advised that she will get her supervisor Puvishka Naidoo to call me before 9:45am. When I called back today Harry advised that she's still not available. Why do your'll have such supervisors who cannot deal with customers and avoid them. the ceiling was not leaking yesterday but is today.