Free Traffic Legal Advice

I am the registered keeper of the 2 vehicles - PCN 1 11/12/25 and PCN 2 19/12/25

Album 1 - PCN 1 11/12/25 NCP rejection and POPLA submission;  PCN 1
Album 2 - PCN 2 19/12/25 NCP PCN, rejection and POPLA submission; PCN2
Album 3 - GA website info on parking; GA parking info
Album 4 - Pay by phone app screen shots; Pay by phone app screen shots
PCN 1-

I live a bit of a distance from the station car park, but will return there to obtain photos of the ts and cs displayed on signage

I responded to NCP re PCN 1 enclosing the receipt confirming payment was made on the Pay by phone app - copy in album 1

I responded to NCP re PCN 2 enclosing the receipt and copies of PayByPhone screenshots showing there is no option to select anything other than whole minutes/hours/day.

Sadly I have not seen this site until yesterday.
I hope that I have followed the necessary guidelines and really appreciate any help, thank you.

Firstly, I did not know what I was doing to begin with and my appeal - submitted to POPLA shows I was the driver. Summary of the matter which is currently with POPLA who are gathering evidence from NCP is below. I would welcome any help, thank you.

Happened 2x in subsequent weeks, so two PCNs under consideration.
Parked at Greater Anglia station car park at around 845am
Paid using parking app later that morning as website says you can pay online for a day up to 4am the next morning (included screen shot in response)
The app (Pay by phone) gives you the opportunity to pay for minutes/hours/day - it does not ask for arrival time.
I paid and have a receipt (for each occasion) for a day, which confirms parking until 4am. On both occasions I left before 9pm.
PCN due to breach of T&Cs ‘partial payment, and liability for the same having been brought to the attention of the driver by clear signage in and around the site at the time of parking’
I am refuting this charge on the basis that I followed all guidance and entered information within the parameters of the app, paying the full amount as requested within the time limits prescribed.
Peculiarly, the two appeals I have put in in respect of my PCNs have had two different responses - NCP reduced the first to £20 if I paid quickly and did not bring the case to arbitration - otherwise I would be charged £100.
The second PCN was upheld by NCP and required me to pay £60... unless I brought the matter to POPLA - otherwise it would be £100.