Unacceptable service from Legacy Auto T/A Zambezi Auto ARC

I received a quotation to repair my car's bumper from Legacy Auto T/A Zambezi Auto ARC. At the top of the quotation the following words are printed in Bold, Red font: "INDY XPRESS 5 DAY REPAIR. PLEASE NOTE THAT THE REPAIR DURATION WILL BE A MAXIMUM OF 5 DAYS...."

My car has been with them for 2 weeks (6 Sept 2022 to 20 Sept 2022). After phoning them 7 times, I still do not have a satisfactory answer. Promises to return my calls produced no action and people whom I've spoken to, clearly have no idea what is going on with my car, as I only get vague excuses, but no answers. The repair entails a simple bumper replacement. The appointment for the repair was made well in advance to enable them to order and obtain the new bumper on time. We stay in Bronkhorstspruit and often travel to Pretoria. As elderly people, having to drive with less safe vehicles is, is putting us in unnecessary danger.