****ed off

i took my car for service in Le Roux Motors for 75 000 service on 28 December . I made the service receptionist aware that my car makes noise when applying brakes. But still the problem still persistent even after they said they fixed the problem. But now I just returned my car on 23/02/2016 to GM in Rustenburg and they tell me I should pay R12000 for brakes. What is so sad is my insurance has stopped covering for my maintenance place as from 24/02/2016 and GM only did quotation on 24/02/2016 so GM in Rustenburg also delayed to fix my car.<br> <br> What's ****es me off is what is the use of taking a car for service if they could not detect such problem even when I told them. Is it really fair on me now that I have to pay R12 000 on brakes.