Worst Service From MiWay

I was in an accident on the 17th of May and Miway approved my claim, however, there was a problem with my bumper as my insurance ordered the wrong bumper for the car. When the panel beaters requested authorization for another bumper they were told to repair the damaged one which had been repaired before. This was only done after the panel beaters called me to make a follow up with Miway as they were not getting a response. That advert of them following up is not genuine as I have never had anyone call me to check if I have my car back or not. The panel beaters have repaired the old bumper but are worried that it might break when they install it and if that happens I will have to wait another week without a car while they approve a new bumper that will need more time to be spray painted.