D-Mart / Avenue Supermarts — Dent on car in parking

When parked my car Hyundai Venue MH.16 B29524 It is found that there is dent on left rear door of my car due to
trolley hit by unknown customer. It is to be noted that there is no any railing
to stop the trolley which hits
the car directly as such mistake is of DMart parking authority and not of any customer. Parking was done by me in marked area only.
Kindly make my loss good .