Momentum Insure: unhappy client

I have a logged a vehicle damage claim in April/May.. it was approved and was directed to take my car to Accomplished Automative in my area. Assessment was done and I was told to wait for car parts... it went quite for months I till I went to the body works and enquire if they haven't forgotten. The answer was no they are still waiting...around September I was told some parts have arrived bt not all... I am still on the wait as we speak... my car is not fixed... I only get feedback from Accomplished when I call them or go inside to check. As for Momentum they never bothered to ask bcs I believe the status is open from their side. I called them and they promised to investigate and come back to me... none of that happened