Even if the post is not lost, the health systems get confused. A friend had an appointment, went to it, got booked in and sat down only to be told 45 mins later that his appointment had been cancelled, and he should have got a letter re-arranging it. Quite how they booked them in for their appointment when it had been cancelled I'll have no idea.
Alas, back to the topic of the thread - I've had approx 3 private tickets. Two were before PoFA came in (so ignored), and the latest was parking out of a stores hours which was cancelled by the store. Although I'm very aware of most PPC's ineptitude, I simply do not have the time or will to fight one unless I absolutely have to, so I try to remain within the "rules".