You'll have to submit this under "any other reason":
Dear London Borough of Merton,
It is unclear which statutory grounds of appeal the council believes apply to this penalty charge. While there are five grounds listed on the PCN, when trying to make a representation I am presented with no less than 22 grounds that don't seem to match or overlap with the grounds on the paper PCN at all:
A friend / family member recently passed away
I am a Blue Badge holder
I did not realise I was in contravention
I have already paid the PCN
I performed the contravention due to my medical condition
I performed the contravention to avoid congestion
I was avoiding an accident
I was following a diversion
I was following my sat-nav / I was lost / I'm not from the area
I was making way for an emergency vehicle
I was not at the location on the day
I was not the driver
I was not the owner of the vehicle
I was unaware of the rules
I was unaware that a PCN had been issued as I've been away
My vehicle had broken down
My vehicle is a taxi / private hire vehicle
My vehicle was cloned
My vehicle was stolen
The owner of the vehicle has passed away
The vehicle was on hire to someone else
I have provided a screenshot of this at (link)
It would appear that either the grounds on the PCN are wrong, or the ones on the website are wrong, or maybe they are both wrong. In either event this does not appear to be a proper or lawful approach and I suggest that the PCN should sort out its processes before issuing any more PCNs.
Yours faithfully,
The link will redirect to https://imgur.com/a/lfZqhu3 but do not put this link into the representation, I will email you a link which will provide an audit trail of the number of clicks it receives (do not click on that link yourself). If the click count remains at zero, we'll be able to show that they've not considered all the evidence before responding to the representation. If they say that they've considered all the evidence, we've got them for lying as well.