Received this email today. Doesn't look like they even considered the representation.
Thank you for your correspondence regarding the above Penalty Charge Notice (PCN) we apologise for the delay in our response.
I have carried out a review of your case and considered all of the information you provided but, on this occasion, I am unable to cancel the PCN.
The following 2 options are now available:
Option 1 - Payment at the reduced rate can be made within 14 days from the date of this letter:
... [payment options listed]
Option 2 - Make a Formal Representation
If you have not paid before the end of the period of 28 days, beginning with the date of service of the PCN, we will issue a Notice to Owner (NtO) to the registered keeper of the vehicle. The NtO will allow the registered keeper to make fullpayment or a Formal Representation, appealing against the issue of the PCN; the procedure for doing so will be explained on the NtO. Any new evidence can be presented with the formal Representation.
We will consider any representations, even where we have previously concluded that the evidence does not merit cancellation of the PCN. If we reject the formal representation, the keeper will be able to appeal to an independent parking adjudicator, who will be able to consider whether the motorist's case falls within any of the statutory grounds for appeal. It is not possible to appeal to a parking adjudicator without going through the process of making a formal representation to the local authority.