Poor service

My car had rear bumper damage including the boot lock. The car was repaired on time and the panelbeating was fine. Staff pleasant and efficient. When I fetched the car the boot opened. When I got home the boot would not open. Took the car back twice and no help. The last time the service adviser suggested it was wear and tear. The technician gave me a demonstration on how to use the car remote to open the boot!!!!!!! Eventually he drove it round the corner and then brought it back and said he had lubricated and adjusted it. No improvement and the boot would not open. Eventually took the car to VW for repair. Very poor show Proline.