The person to write to is
Louise Ash
GM First & Last Impressions
Room 824 South Roof Office Block
Gatwick Airport
RH6 0NP
I've spoken to a couple of Gatwick policemen (not sleeping) and they are as pi##ed off with these things as the rest of us.
I'm sending Ms Ash a bill for damage to my car, can I suggest everyone else does the same.