******ions, ********* business practices

My son called Nissani Benoni on 11 September 2024 to book a car service that was supposed to be the second and the last as per the sales contract I had when I bought the car at WE Buy CARS. The booking was for 07:30 am and they advised him that they would call him for collection. around 12:28 I received a call from a lady who told me the car was supposed to come when it reaches 90 000KM of which I said I''m not aware of the KM rule all I know is that the cars has two service plan and she said if they service the car I will have to pay I said I don't have money to pay since it was already paid she told me the people who included the service plan are an independent company and I will have to speak to them ,since I didn't have the strength to fight further we agreed that they don't service the car and my son will come collect it ,mind you the car didn't have any issues but as soon as the car leaves the dealership it got stuck in less than a KM and a guy from their dealership called my son say he can check and advise the car of which he advised after checking that the wheels are binding, and my son has to call the dealership since the car needs to be towed, the tow truck came I spoke to them asking who is going to bear the cost of which they said they don't know there were only advised to tow the car to the dealership in order to get it checked. why would you advise fixing the car if you didn't purposely damage it to ****** money? My son noticed that the brake pads were changed, why would you change parts after being advised to service the car