POOR SERVICE GM VEREENIGING

In January 2015 I book my vehicle in for its 30 000 km service, when my assistant arrived at the dealership she was informed that there was no appointment made. This after I received an SMS to confirm the appointment. After a huge fight I manage to get another appointment a week later which mean my vehicle's milage exceeded 30 000 km. I was informed that this will have no impact on my warranty. <br> <br> Six months on, I made a booking and took my vehicle to have it service on 45 000 km. Only to receive a phone call informing me that my vehicle is not due for a service until 60 000 km. Not only does this leave me confuse as to why they are skipping the 45 000 km service, but the consultant whom is handling my appointment was rude and unhelpful. Failing to explain why and informing me that her manager will be calling me. It is now 4 pm, Tuesday afternoon and still don't know the status of my vehicle service nor why or what the problem is with the milage of my vehicle?