Toyota Carnival Poor Service

I came to bring the car on the 14th for 75000km service, all was good. However something was wrong with the brakes after the service I called Ramash the service advisor that was helping me, and he said I should bring the car on the 18th at 9am. I arrived at 8:58 and the service foreman drove the car to diagnose the problem. And Ramash told me that they able to fix the car on 20th, i told him that I wouldnt be able to wait for so long because i was leaving for Vaal. Ramash managed to speak to the people that were supose to fix the car and it was arranged to be fixed on the same day and i asked should I go home he said no I can wait it should take an hour, of which I didnt have a problem, what made me unhappy was that I sit there at the dealership for over 2 hours without be attended too and on one bother to inform whats taking so long... Ive never recieved such poor service previously... My time was wasted I could have went elsewhere to prepare for my jounery going home to the Vaal while i was waiting for the car to be fixed. The problem of the car is still there, no difference at all.