Serviced and charged my wife for something after o...

Serviced and charged my wife for something after only 6 months and 3000km (on a near new car) which didn't need servicing anywhere near that frequently. I called them out on it and got a refund. They also said brake pads were 80% worn and recommended new pads. We went to a different place and brake pads were actually only 10% worn. Please make your judgement on how honest they are from this information.