In the eyes of the NRCoT you may use more than one ticket to make a journey.
I sigh every time I hear someone quote this.
Could you tell us what a "journey" is, according to the NRCoT?
If I travel on way from London to Newcastle on an Advance Single ticket, how many journeys have I made? (that's an easy one)
If I travel from London to Newcastle on an Anytime Single, but spend a night in York, then the following day visit all the museums there and in the evening travel up to Newcastle, how many journeys is that?
If I travel from London to Birmingham on an Advance Single, then immediately take XC from Birmingham to Stansted on a separate Advance Single (that route as a whole would not be permitted on a through ticket), how many journeys is that?
If I am using an All Line Rover and travel from Plymouth to Birmingham, then spend the whole day covering the entire West Midlands network in a crisscross (but stopping for three hours to watch a football game and get some dinner) , then head to Stafford, how many journeys have I made?
And so on.
I agree that TOCs ought to pay out on split tickets, but I disagree that you can use the NRCoT to force them to do so.