There is a difference between the COFP telling the driver what to do and the driver not doing it and the COFP not telling the driver what to do.
Is there a material difference (12 angels dancing on the head of a pin is different to 13 angels dancing on the head of a pin), and in what regard?
N.B. I have been asked to "play nice" for a while, so I will avoid ventilating the obvious immaterial difference.
DPP v Holden (of the previous parish) held that a defective COFP was not a bar to subsequent prosecution after the suspended enforcement period had lapsed, if the defect did not disadvantage the accused. That is not however to say that if the accused was somehow disadvantaged it would necessarily be a bar to prosecution or otherwise a defence.
As regards the prohibition on instigating proceedings when the requirements of a conditional offer has been complied with, either they have been or they haven't.
The statute (s. 75(8A) RTOA 1988) is reasonably prescriptive regarding the information (name, date of birth and licence number) that must be provided to the fixed penalty clerk. I would suggest that the date of birth is effectively redundant where a licence number is provided.
It does not appear to be open to the CTO to insert their own requirements beyond that of providing information necessary for the recipient to provide the identification information to the appropriate person (fixed penalty clerk).
If, as the OP appears to be trying to tell us, he had to provide this information (possibly not including the redundant date of birth) to the appropriate person in order to make payment, unless he provided the wrong information, it is not obvious that he failed to comply withe the requirements set out in the statute.
However, if the OP has managed to fail to comply with the requirements, there is no statutory bar on prosecution. The obvious distinction between not bothering to read the COFP and the COFP not bothering to state the requirements is that in the latter case the argument for sentence at the equivalent of the fixed penalty is far more compelling.