BMW montana service

On the 15th of January I brought in my BMW 520d to have the front brake pads replaced which they did but didn't put back the sensors.

Today on the 27 I had to take the car back to BMW montana against to have the sensors put backs after speaking to Rudy the manager. Meaning I had to travel 85.4 km when I combine the two is 170.8 km.

My question is, who is going to pay for the diesel I spend to take the car back to BMW Montana. The only thing I got from the manager was, you can report to BMW if you want to. I'm talking about 170.8 Km wasted and it is their fault.