Once again poor service from this dealership

I bought a car from Imperial Select Meadowdale Isando and had problems with getting the car from them on the date promised. Secondly the car passed its road worthy check with a bad front tyre and bad wheel alignment with the car pulling to the left. I was also told that the car had been serviced before i got it. it is almost a year later and my car is due for a service so i called VW to schedule a service on the car, only to be told that they do not pick up a service plan on the car. Also that the last time the car was serviced was at 45000 km and it is now on 66000(should have been serviced at 60000) which they have no record of although the service book says it was serviced and stamped. I called the dealership this morning and again about 5 minutes ago and i still don't have any answers. I have paid for a service plan and yet i have to struggle to get my car serviced. I bought the car with 60000km on the clock so it has only done call it 7000 km just to be fare. Can somebody please help me or should i get a legal team involved? Please people stay away from this branch they are just bad news.