I have exactly the same situation. Parked next to a sign saying you can park on the pavement, didn't see the other side of the sign. I would have just parked a foot closer to the corner if I had, but I have always tried to avoid parking too close to corners. There were no markings on the ground.
I appealed and have the same letter this case refers to - still says you have 14 days from the date of the letter being served to pay £70 or 28 days from the date of "our Notice" to pay £140.
Can you please clarify why the appeal was successful for the OP? Maybe
@cp8759?
Thanks!