Some muppet drove into the back of my ST24 whilst i was parked up at work, so i have no idea who did it, and have had the CCTV checked as it was parked in a parking bay by a cable and wireless buliding(spoke to cable and wireless and they looked at it and said they could see nowt, which means one of there vans hit me then

)
I am fully comp on my insurance with 6yrs no claims (not protected) if i go through my insurance do i lose all 6yrs or only a couple?
cheers