This would appear to be the current Practice Direction:
https://www.londontribunals.gov.uk/sites/default/files/Practice%20Direction%2003-2024%20on%20behalf%20of%20ETA%2028%20November%202024%20%28PWS%29.pdfParas 10 and 11 would seem to apply:
Re-service of Notice of Rejection after a Ground 2 [made reps but did not receive a NOR] Declaration
10. The Authority may re-serve the Notice of Rejection on the Declarant and allow a further 28
days to appeal. To comply with the Regulations, the Authority is required to refer the
declaration to the Adjudicator under these circumstances, even though no action is required
of the Adjudicator.
11. Where the Authority has re-served a Notice of Rejection after a Ground 2 Declaration in line
with the process described in the paragraph above, and the Declarant appeals against the re-
served Notice of Rejection, the Authority should ensure that the case summary indicates
that there had been re-service. The date of the re-service must be indicated in the
verification code and the Notice of Appeal form to enable the Proper Officer to ascertain
whether the appeals are made in time.OP, pl clarify who's who here because earlier you wrote:
and Brent have since sent correspondence to the driver and it contains a copy of the NoR.
The driver has nothing to do with this process: it is owner liability i.e. the registered keeper.
So pl clarify who's who.