Momentum up to no good

So I have been battling with Momentum after they allocated a panel beaterto fix my car. It's been a year know with ongoing calls about my complaints about the problems issues with the workmanship my car is in a world shape than before. A have asked for a assessor to come and have a look they have never sent one. They asked me to take the car to another panel beater for assessment and with a big fight they agreed that it will be fixed by the 2nd panel beater. Well that's it after numerous emails calls my car has still not been worked on nor any feedback from Momentum.