Denver Panelbeaters Terrible Service

Good afternoon, I had an accident on the 1st of March and the claim has been approved by my insurer within a couple of days. My vehicle has still not been booked in at Denver Panelbeaters as they are awaiting parts. The driver door should be replaced with a second hand door, the back door repaired and the rear tyre mould be replaced. It has been six weeks and I am driving my car as is and have to get in at the passenger side which puts me at risk. My vehicle is a red 2013 Juke, and I have been liaising with Cathy at Denver who advised that she has escalated it to their manager to follow up with Nissan. I am not impressed with the service as I am restricted from making any appointments and going into the office due to not knowing when the car must be taken to the Panel Beater. Please assist. Thank you, Tina van Rooyen ***