Hi All,
Would appreciate any help fighting the following PCN.
I took my son to London for a long weekend - on the Tuesday, we parked on Wigmore Street, on a single yellow line adjacent to a RingGo bay. I checked the signage and noted that Blue Badge holders must pay for parking (which I did, for 2 hours), and we receive an extra hour free, after the paid session expires.
I was uncertain about the single yellow line, so I checked the Westminster.gov site and screenshotted the section about Blue Badges regarding the kerbside plate:

Other than the 4 hour restriction and RingGo signs, I could not find any other signage regarding the prescribed hours. I assumed I'd be okay to park with my blue badge on display, as there were two other cars parked in front of me doing likewise.
My car was positioned directly in front of the parking bay (rear wheels were pretty much up to the line) - green arrow on the Google Street View shot.
We left to visit the Twist Museum round the corner and returned just under 90 minutes later, to find a PCN attached to the windscreen:


Signage & Markings:




Google Street View (from July 2024, which doesn't show the updated street markings, nor absence of any plate stating restricted hours):

Proof I'd paid for parking:


I could understand the ticket if there was another plate next to the single yellow line, specifying the restricted hours, but there wasn't.
I'd be grateful for any assistance in challenging this PCN - £15 for two hours parking felt steep enough, without having to pay a further £80 on top!