I sent my car in to get a coolant leak fixed. I knew it wasn’t the radiator as it had just been replaced. They put 2.5 hours labour into and replaced my thermostat and the top hose. The parts were cheap but the town I am in has expensive labour so it worked out at $400. I have driven the car less then 4km since the repair and the leak is still there and hasn’t changed at all. It still leaks in exactly the same meaning what they fixed wasn’t the issue. Can they charge me when I take it back to them?