Bad service

We called Porsche center lone-hill to book-in our car for service on Friday the 28th of August 2015, i spoke to Clyde who booked our car for Monday the 31st, Clyde advised that the service intervals is10000KM , before we were told by another service adviser that the service intervals is 20000 or 30000, forgot the exact number . we took the car to be serviced as the service warning light was on , they just reset the warning light and told us the service is interval has not yet been reached and the car was left with about 450KM before the motorplan elapses, if i am doing my calculation correct, based on what Clyde told me the car was supposed to be serviced , but he said our service interval is 20000KM, but Clyde told us a different story. <br> <br> Before the car even went out of Motorplan, we complained of strange sounds that we hear from the engine , every-time they tell us that there is nothing wrong. we are shocked with our discovery and we have lost faith in Porsche South Africa, we have 2 cars bought from the same dealership . i don't think we are going to buy Porsche cars anymore.