Thank you all for the information provided so far.
So, it looks like the order stands up? As a newbie, I'm guessing that the parking order is for the purposes of giving them authority to issue PCNs in that location?
In any event, there are no warnings at the site that a penalty charge of £50 might be payable for a breach of the location's terms and conditions and simply stating that a 'penalty charge may be issued' is insufficient.
Is this really an argument that might be successful on its own? Playing devils advocate, why would they need to give an exact figure to the PCN - I believe in Rotherham PCN's are either £70 or £50, so it's public information. Having said that, in private car parks I've always seen the threat of fines quoted in exact figures.
Is Code 86 the correct code since it says "Parked beyond the bay markings" when there are no bays marked (even in what we assume is the parking area) and this is not what the terms board refers to? If challenged, would the council simply reissue the PCN with the correct wording?