Poor Service Renault Bryanston

I towed my 2015 Renault Megane to the Renault Bryanston dealership two weeks ago, due a "check injection" fault. I had to consistently call them for a update on the car, just to be told that technicians still need to run the tests. I then called again three days later, and the service adviser told me that the technician has the vehicle on the ramp and they'll provide feedback later in the day. As the day passed i still wasn't contacted, so i called them again. The person i spoke to told me that i would need a new injector ECU, and that the part would need to be ordered from France. When i asked about a courtesy vehicle, i was told my name would be placed on the waiting list. I then called Renault South Africa Head Office, and spoke to customer care, and got a different story, they told me that I'll only get a courtesy vehicle 10 days after the part has been ordered. I then called Renault Bryanston again, to find out whether the part has been ordered. The lady i spoke to told me that they having IT related problems and that the part could not be ordered. It took me two weeks to find out this information, and when i asked again about the courtesy vehicle, she told me that they cant do anything, because the part has not been ordered yet. This is TWO WEEKS LATER. Now i have to wait for Renault to sort out their IT problems first then wait 10 days to qualify for a courtesy vehicle.

This service is honestly pathetic, my vehicle will now only be ready in January 2019! if i'm lucky and that part is ordered. Why can't alternative arrangements be made with other dealerships for a courtesy vehicle.