Bad service

Booked my vehicle in on Thursday 16/07/2015 for brakes replacement. The service was scheduled for Friday and I dropped off the vehicle at the dealership on Thursday afternoon. Asked that the vehicle be ready for collection by Friday at 4pm which was agreed to by the service advisor. I called at 3:30pm on Friday to check if the vehicle was ready, I was advised that they had not even started with the vehicle, what was even worse was the way the advisor had handled the situation, full of arrogance like they were doing me a favour by servicing my vehicle. Anyway today I realised that it is actually head office that is training the staff to be arrogant and unapologetic to the customers, I called head office to complain about the service I received on the past 2 occasions from the dealership and got the same don't care attitude. Did not even bother to take my details or promise to follow up. I have dealt with many other dealerships of different car brands and I must say that Hyundai is by far the worst when it comes to after sales and this is right up to Head office. It will be a really cold day in hell before I even consider buying another Hyundai