unprofessional, arrogant and dishonest

I had an issue which was causing my power to trip at the mains. I isolated it to the power supply of the main gate. This Emanuel guy was one of the guys recommended to me. I got him to come and give a quote. I showed him which outlet was causing rhe power to trip, at first first without checking he was in disagreement. Then he went and disconnected some wires at the isolator to the gate and checked the power, it turned out he was checking checking wrong set of wires...he was actually checking the wires coming from the gate. He then said two live and neutral were touching each other. I found him to be arrogant and seems to go with whatever pops into his mind first. I told him I want the issue to be fixed and also wanted an additional plugpoint . I decided to go with his quote despite having better quotes. He came on a Friday to do rhe preparatory work and then on Saturday he did the final bit of wiring. While doing this he said he had forgotten a few items on the quote and would need to requote me...which is nonsense and totally unprofessional. You can't give someone a quiote and then while doing the work say you forgot x y and z...I understand this is afreeka but this was ridiculous. After all was done the power was still tripping yet he was convinced it could not be the case. I got annoyed and told him that he needs to fix it. He then lied and said that his job was only to provide a new power outlet. He then came and started tampering with the dB board...he bypassed the earth leakage as suspected. He is arrogant, unprofessional and stupid. I eventually had to get someone else to come with a multimeter and we found out that he had done the wiring incorrectly. Then he had to rewire the gate. Now I need to get another electrician to check what he has done. He might be good with simple things like wiring a plug or installing a kitchen appliance but not anything serious. Later that night he sent me a quote which was 700 more than the initial quote of 3200. In the quite he listed 16vujits of wiring totalling 500. I measured 10m of wiring and which costs aviut half the price quoted. In the end you get what you pay for. Hire a qualified electrician instead.