DART charge (Dartford Bridge) penalty, but vehicle was registered for autopay?

1haveaQuestion531

So received a letter with a fine for the DART charge, for a vehicle I added to the autopay months ago.

1. It was a reminder, with an extra fee, but we never received the original PCN. Apparently I cannot challenge it, as it is too late. What do I do?

2. I am sure I added the vehicle to autopay earlier. But when I checked yesterday, it was not on the system. Tried to add it again, it accepts me adding it, saying "You've added 1 vehicle". But when I check, it's not on the system. Is the DARTcharge website broken?

Bigwheels1111

You are normally let off for the first offence.
Your fault or not.
Have you called, for advice.

My car got a fine, registered disabled for 3 months before fine.
I called and was told they had not updated their records.