Mind-blowing ignorance.
I'd be tempted to reply.
Dear Sir,
PCN ******
Thank you for your letter dated **** rejecting my representations made on ***.
I have read the letter and should be grateful for clarification of your reasoning in order to inform any formal representations.
Is it the authority's position that the road markings at issue are not required to have an associated upright traffic sign to indicate the times of any parking restriction, whether payment is required and whether reserved to specified users but that any motorist should and is required to infer that the timings align with those for the adjacent yellow lines, that payment is not required and that any class of vehicle may park simply based upon the placement and content of 'controlled parking zone' signs.
Could you also explain your comment that 'You have 28 days from the date of this Notice[Notice of Rejection] to do this[that is to pay £60]'. As I understand it, a penalty charge of £60 may be paid at any time up to 14 days having expired following service of a NOR on the owner pursuant to unsuccessful formal representations having been made.
Yours...
