Enraged and left without a car... I can't even go to work!

I can't believe the service I am getting from MiWay. i was in an Accident on 17 April 2019 with a guy that crashed into me, moreover, we are on the same insurance and he admitted that it was his fault; with that, I thought my process will be dealt with efficiently and quickly. I logged a claim and my car was assess the next day... could someone explain to me why I have to keep pushing them to finalize my claim??? What's worse is that i have to keep calling them and they don' even return my call.

Moreover, my car was dropped off at the wrong service center !!!