No, I don't think there's necessarily any argument or disagreement here, thetrout.

For a start, with my business, and my department in particular, we are all encouraged to buy 'advance' tickets whenever possible.
Take an example: I have bought an advance ticket from Nailsea to Paddington, for a meeting in January. However, shortly before that meeting, I discover that I have to take an important document, which is held by my colleague grahame in Melksham. I therefore drive to Melksham (trains not being an option!), collect the document and drive to Chippenham, to catch the train for which I have a valid ticket (and seat reservation).
What is the problem with that last minute change of plan, starting my train journey a bit further on
