Bad Customer Service from Mercedes Benz SA with arrogancy

This morning (12/04/2019) I took my car to Durban Mercedes Benz as it was showing warning messages- Auxi****y Battery Malfunction and Brake Pads. I was informed that they claim was rejected by Mercedes Benz Warranty Dept because I only did 13000km. I then contacted Mercedes Benz customer service that was when I was told that this is a premature brake failure caused by the way I drive the car and that brake pads I meant to last for 17000- 20000 km. To me this is a bitter pill to shallow, telling your customers that it’s their fault without even considering other factors and on top of that being told that if I am not happy I must go to Motor Industry Ombudsman….that is being arrogant