Had this with our last lease car we returned, they sent out a letter 6 weeks after it went back about damage and asking for around £500. Told them to send me evidence of the marks done before collection. I was emailed some photos of scratches with polish trapped in, you know that wouldn’t show if you buffed the polish back out and a supposed door crease that I could not see and knew wasn’t there.
I emailed them back asking for a copy of the inspection sheet before the car was taken away. I waited, and waited, emailed them, phone calls, emails and after 2 months they came back saying very sorry but they had no sheet and the bill would be passed on to the transport company who collected it.
I then got one for £62 for excess mileage about 4 months later, they’ve agreed that in fact we were 3,500 below the allowance but still sent a reminder out. That one is still going on.
Ironic thing is other cars went back with damage that I pointed out and heard nothing.