I bought a brand new Lancer last month and am pleased with it. It has a fancy reversing camera viewed via the sat nav screen on it, which failed after two weeks. The car went to the dealers for repair. They had a look and need a part that has to be ordered.

I collected the car ( in the dark) whilst the bit is sourced. In the daylight today, I found a screwdriver on the passenger seat. I popped it in the door cubby hole to give back to them.

I then noticed significant damage to the dashboard and fascia trim where this screwdriver had been used to gouge off the trim of the satnav headunit.

This car is barely a month old.

Any suggestions for tackling the dealer on this botched repair job? Can I expect to get the car repaired to my complete satisfaction?