Today I had a house with 4 lights not working. The house had a COC and the wiring was a mess. I phoned the contractor and he told me he did not do the wiring or the COC but somebody that worked for him did it. He will investigate the matter and get back to me. A few minutes later a couple of students showed up and after telling them what is wrong and how to fix it, they fixed it.
But the wiring is still a mess, the geyser is still not bonded and the steel structure of the house is not earthed. A legal COC, sloppy COC or faulty COC?!