Nightmare of service with Assessor Johan and Huson Panelbeaters

Since 12 December my car has been with Huson Panel beaters, to which it was taken to wheel alignment no report was given of any fault with the car. Yet on last test drive was told my car looses power to which was a shock. I called Dial direct on the 1st of February I was assured that is well it will be sorted drove 260km to fetch my car only to find the fault was not fixed. I was put through to assessor Johan who was extremely rude and bully which I suspected it was racially based as he even threatened to drop the call on me. Panel beater refuse to take responsibility and Dial direct is sending me from pillar to post. Im expected to pay R7800 excess and still take a faulty car. Even when I offered to pay 50% of the cost to fix the car with the panel beater paying half. Which is a mere R 3000 at most. I was told by the workshop manager they wont as they run a business. Yet there is proof that my car was fine. Dial Direct has given me the worse nightmare in short term insurance to think I insure so many items with them. It's a shock they can do business with such rude Assessors like Johan. Now I'm expected to sign off an half painted car with missing wheel cap to a mechanic. Already lost R4600 in counting renting a car. Panelbeater even refuse to give courtesy car, instead saying they can rent me one. After my car is with them for almost 2 months. Is this how Dial Direct really value their customers?