my father in law has a vw caddy (sdi). it has something like 120k in it even though it looks beaten up. i once told him I'm surprised. he told me that's 1.120.000km as the analog dial goes back to 0 after a million
I would also block/reject a person like this. I had my fair share of these phishing attemts so I'm not asking questions if someone is trying to touch my infra.