I've just received confirmation from my contact to say that the PCN has been cancelled and his payment correctly allocated to his crossing. (I've e-mailed Steve too )
I'm still trying to speak to the Dartford ANPR team and the technical issue of the ANPR not identifying a Romanian plate from a UK plate though! As you can see, there isn't much difference and both are legal plates. The ANPR doesn't recognise the blue parts, only the characters, so work needs to be done on the logorythm and recognising the slight difference in fonts.
Dartford just look for a payment for B78 BGG and if it isn't pre-paid, their automated systems goes to DVLA, gets the owners details and issues a PCN. No-one is checking that the registered vehicle types match the actual picture taken from the crossing....Yet !
(This is not SRHutch's actual plate, but a similar scenario, as to why he keeps receiving the bill for the Romanian Van that is crossing)