I attended a country show yesterday, I parked well away from the car on my passenger side, and kept my driver car door open to ensure the next to park that side of me gave plenty of room. On returning to my car there is now some paint damage and a small dent where a car door has been opened onto my passenger door. the vehicle that was parked next to me when I first parked had either gone or moved, there is no way of me knowing which vehicle/driver has caused the damage. I have fully comp insurance and full NCD, I have today gone down to a local branch of a car body repairer to gage an estimate, it is around £800 worth to put right. How do I know if this is covered on my insurance? I have never claimed on any car insurance before.