At the weekend I parked in a council car park at the seaside. Paid the (extortionate) fee to park all day on the machine on site, using contact less. All seemed to go through OK and I was provided with a ticket, which I displayed in the windscreen.
The payment never went through on the bank account and now, 3 days later, I have received a notification from the bank that it was declined (no idea why).
Presumably, as the car was displaying a valid ticket at the time, that will be then end of it?