Worst Service and Communication

My car been with MAG from the 19th of February, It was on an accident on the 8th of February , My Insurance King Price then took it to MAG to get the bumper and the Fender fixed. A process which normally takes up to a week is taking weeks and weeks and their communication is extremely inconsistent. The next moment they received all the parts the next moment I receive communication that only 20% of the parts have arrived and nobody is being transparent with regards to which parts are now in the backlog and where exactly are they with their repairs. This is extremely annoying that I have been calling every single week and hearing excuses after excuses.