Poor service

After being in a car accident on 14 May 2019 , my claim was accepted and my car was send to technicolor with the assurance that my car will be fixed by the 5th ,after phoning technicolor on that day it was brought to my attention the car has only been stripped and they were still waiting for parts ,i phoned them again on the 11th just to hear from them what is going on ,they told me they started working but stopped again waiting for other parts and that there was additional damage , i contacted out surance to hear what is going they told me they would get back to me on ,i phoned them the previous there is still no clarity ,this is frustrating me as my car is my only means of transportation and i lose money each day my car is not running , i was told moving to Outsurance was a better option but after this experience i wonder. i am really unhappy with this