Gutting to see, I feel your pain having been keyed previously!
On a further note, could it possibly have been an accident perhaps? Like with shopping bags over someone's should for example?
I don't think it is tbh. It's one continuous line that is quite deep. It's at waist height and goes from the door to the fuel filler, so someone would have had to have walked all the way down the side of my car without realising they were doing it. The paint that they'd s****ed off was stuck to the side of car too, so whatever did it was small. Either way though i've got to pay for it and the person who did it didn't leave their details.