Bad Service

My mothers A180 gave an error of Transmission Consult Workshop. After a massive issue Merc came to collect the car. Did not give her a loan car. almost a week later they gave her a Smart car to drive with. My mother can't drive with this car. To small and a manual gear. My mother phoned them continuously, they never respond. they never phone back. Got the car on Friday after a massive struggle and issue. A bill of R37,500.00. Saturday the car do exactly the same. My mother is 60. She bought the car because Merc is reliable and we never had issues with service. She can't go without a car and can't drive the Smart car again. The response from Merc Constantia Kloof all over is bad. Even the client liason is saying, sorry they have 60 other clients a day. they can't just drop them to assist my mother. Realy bad service.