id expect to pay if I'm using something I'm meant to pay for. I wouldn't expect to be able to log on and see if ive been detected crossing before deciding whether to pay or not, that's just silly. likewise I would expect a photo proof as in the post above if I received a fine for non payment.
there will always be errors in any system but only an idiot would pay a fine without proof if theyre sure they've done nothing wrong.
i just googled Dartford crossing for some images.assuming theyre the proper pics if anyone can pass through their unaware its a toll then they really shouldn't be driving!