I’m afraid I don’t recall the exact options shown, and GSV isn’t clear either. I’ve only parked there once before, and on that occasion just used the machine to pay for a few hours, so I know the signage and machines are definitely there.
Appreciate the clarification on the codes, looks like that was a mistake on our side, so I guess we don’t have much ground to appeal in this case.
Happy to hear if there is another angle worth trying, otherwise will just look to pay the fine before the "discount" period ends.