Cannot perform work within timeframe they established themselves.

I was referred to Farber Coachworks by my insurance company to repair superficial damage to my vehicle. The damage occurred in February 2024 but the vehicle was handed in for repairs on 15 July 2024 due to delay of parts availability. UPon handing in the vehicle on the 15th of July the manager of Farber Coachworks Somerset West confirmed the repairs would take 10-14 Days. When I enquired three weeks later why the vehicle is not repaired, I was informed that the start of the work was delayed as they misquoted and had to wait for 7 days for authority from insurers to commence work. Today 13 August, 29 days after I have handed in the vehicle for repairs I found the vehicle stripped and without windows standing outside their workshop in rainy weather. The manager cannot give me a clear answer on when the vehicle would be finished and continued making excuses about processes they need to follow during the repairs. The same manager who told me that the repairs would be 10-14 days.