Terrible communication and delays

I have been victim to a car park hit and run, Not my fault, sent in the video footage to momentum after submitting the claim, My claims advisor was amazing and the claim was approved without any hassles. the only damages was the rim and the 2 doors and a scratch on the fender, My car was booked in for a DAYTONA repair (10 days max) on the 02.08, it is now a month later and I dont have my car back, I was called to fetch my car that was damaged by the panel beater and I refused to take the car because the tyre was completely flat, after multiple back and forths I get told that they are doing me a "favour" I don't pay insurance for favours, I provided proof of the km`s that I have travelled after the accident and the Tyre was fine, 2 weeks after the incident when the car goes in for the repair surprisingly the same tyre was damaged by me and not incident related, damaged to the point where the run flat was completely flat which didnt make sense at all, After multiple conversations and fighting this was approved, It is now a month later and I still dont have my car. I had to travel this past weekend which I told my insurance about and I incurred costs of over R5000 due to the negligence and miscommunication from the claims department and repairer. The person that was to give me feedback rep**** at 10pm and set an out of office straight after the response to another person that has an out of office on as well. Since last week Friday morning I have had no communication and no call, Would I have to request a meeting with the COO to be called back by somebody that listens to understand instead of responding?