Did you use my draft? They just seem to have repeated the initial rejection.
They are talking nonsense and I can only think their officer is untrained.
I would register a tribunal appeal and if they contest apply for costs.
They have reoffered the discount. Their letter has XXX instead of times observed which is just lazy.
To be clear, a controlled parking zone entry sign specifies only restrictions on single yellow lines. Parking bays can have number of parking signs that specify who can park and when. No sign = no restriction.
I think whoever wrote this is confusing a CPZ with a permit parking area, which Newham also does.

