And by chance this just arrived.
I've written back and told D Milton that there system's bust.
If you can decipher what D Milton means you're better at comprehension than me. Main thing is that I have the bit where he says the LR is compliant and can wave it at the Judge before I'm sent down.
From TfL today:-
Thank you for your enquiry received on 01 November 2021 regarding the charges to your vehicle registration
H99**FG for the Ultra-Low Emission Zone (ULEZ).
Our website will not tell you if you need to purchase a charge for your vehicle, or not.
Our website will only inform you of the date(s) that can be paid for and it's the driver's responsibility to establish
whether a charge is required.
To check your vehicle's compliance and what charges apply and to pay online visit
https://tfl.gov.uk/modes/driving/pay-
to-drive-in-london and click 'Pay'. This tool will tell you what charges will apply to your vehicle when entering the zones,
the cost and times of operation.
We can confirm that our records show the vehicle registration H996DFG to be ULEZ compliant and therefore, no ULEZ
charge applies to this vehicle when driven in the ULEZ zone.