Thank you all for the contributions so far.
The general consensus seems to be that the consideration period is enough to go on. I've reviewed all photos captured by the operator and they cover a period of 3m 7s. I don't understand how those timestamps relate to the period given in the NtK, but they still fall well within the 5m consideration period, so I'm happy to proceed with the appeal on that basis.
My final question relates to whether or not I should mention the consequences to the operator of not following the code of practice, including:
* The requirement to notify the ATA of any breaches of the code of practice
* The potential for sanction points for non-compliance
* Perhaps the fact that I could complain to the ATA in the case that the appeal is not successful
My feeling is that this could go either way - it could add credibility to the appeal, or it could get their backs up.
Or maybe I should just complain?
Where a parking operator receives a complaint that it considers to be or
include an appeal against the validity of a parking charge, the parking operator
must also treat it as an appeal for the purposes of applying the timescales in
Clause 8.4, and should inform the complainant as such unless and until it is clear
that the complaint is not relevant to an appeal or the complainant informs the
parking operator that they do not wish it to be so handled
EDIT: Hmm - confused a bit now because the NtK says "If you wish to challenge the validity of this charge then you must use the Appeals Procedure"