Worst Panel beater company is SA

I Drive a Chery Tiggo 4Pro 2023 model and was involved in a car accident on 19 April whereby I was rear ended. Momentum approved the claim and approved Cornright Motors to do the repairs. They contacted me and said they can only book my car in on the 29th July 2024 (almost 3 months after the accident). They called me and said they had space and that I can book my car in on 18 June 2024 which I did. My car has been there ever since. Every time I do a follow up with them, they tell me the ETA has been moved. Also note they do not update me, I have to be in constant contact with them. They only ordered the parts on the 02nd of July not even when they received the go ahead from the insurance in April Today being the 31st of July only after I demanded reasons as to why the parts have still not arrived was I told that the only feedback they have been given from Louis Nel who is the Parts Manager at Chery Boksburg, is that the ETA is dependent on the supplier. How long is my car still supposed to be there and why do they not follow up and get this resolved. Chery is a very reputable and professional company, why they would enter into a partnership/agreement with Cornright motors is beyond me