In message , at
11:25:19 on Mon, 1 Sep 2008, Owain
remarked:
Fred wrote:
Perhaps a pertinent question. Is the vendor of the ticket an agent
of the train company or a seller in it's own right?

Possibly both, if the journey involves travel on several different
operators' trains.

If one ticket allows travel on a number of trains, then only *one* of
the train operators will have set the fare, so I don't think it can ever
be a combination like that. The only other possibility is that all
tickets are sold by vendors "on behalf of ATOC" who is then acting as an
agent for the people running the trains.
--
Roland Perry