car problem after collected it from service

I took my car for a service at GM Barloworld JHB of the 13/08/2015 at 8:00 in the morning, I left it in the capable hands of Chane Pillay, the car did not have a problem it was only going for a service. I indicated to Chanel that the brake pads are finished but they must not put new ones.<br> <br> <br> They called me at 16:30 to let me know that it was ready and the driver will pick at the office. When I got there Chane gave me a quote for things that needed to be fixed which was the brake pads and the lights, I then left withthe car, on my way to the office the car started vibrating when I stop at the robot and indicating an engine failure and it didn't even have power. <br> <br> I managed to get to the office andparked the car, I then called the ddealership and I was put through to Tony, I explained to him what the car doing and it was not doing that in the morning when i bright it, he said I mustbring it in the morning, I told him that I don feel comfortable driving it like that as I stay very far, he then told me that the car had a problem with a coil pack and it will cost me around R4500 they just forgot to call and letme know. My car did not have a pproblem I whenI took it there.