Very poor customer care

After being told that my car was ready for pick up 2 days after a service and repair booking, I was told a driver would be picking me up early on in the morning - around 9:48am. I had booked sick leave and was feeling un-well but said if I had to go pick up my car, I will rest afterward. At 11:48am I got another phone call to say the driver has been dispatched now only. I called the service centre to find out the driver is experiencing some delays and I will be picked up soon- I informed them that I am unwell and it was actually my day off and that I had kept the day open only because I was informed originally at 9:48am that the car was ready for collection. The driver then arrived at 2:45pm- 5 hours after. After arriving at Merc I insisted on road testing the car with a technician first as they say they could not find the fault I very clearly described when bringing the car in. After 5 mins of driving the car died, and was impossible to drive. I showed the technicians the fault I had described all along. I was now told parts are to be ordered and the car would take another week. I didnt even receive an apology for wasting my entire day and not even fixing the problem. No courtesy