Several interesting points raised.
On the NRCoT
Section 28.2 obliges any TOC to carry stranded passengers when they reasonably can do so. Apparently, LNER determined its own services were too crowded for it to reasonably accommodate displaced GC passengers. Assuming that this was so – I have no reason to doubt that it was – then LNER was relieved of its obligation under the tickets issued to those GC passengers.
Some posters suggest that the fact LNER accommodated passengers who purchased walk-up tickets implied that its decision not to accommodate passengers with GC Only ticket was unreasonable. I disagree. Once those passengers entered into a new contract by purchasing an any permitted ticket, LNER was then obliged to carry them whether reasonable or not.
On CSL2
As several folks have mentioned, the internal workings of the rail industry are no concern of passengers’. This works both ways – Grand Central is not under any obligation to declare CSL2, and any obligations LNER may have when this happens are owed to Grand Central. They are not enforceable by Grand Central’s customers, and nor is Grand Central obliged to declare CSL2.
On speaking to the guard before boarding
It seems reasonable to me for the guard to be given discretion whether GC passengers could be carried on a particular train, absent a CSL2 declaration.
On needing to pay for new tickets and reclaim
Whilst this might have presented liquidity problems or other difficulties for a minority of passengers, it seems to me to have been the fastest way to get the majority of passengers on the move to their destinations. I have no reason to doubt that GC was willing and able to repay passengers for the extra tickets purchased. For those for whom this presented a problem, the final sentence of the GC instruction suggested they speak to a GC representative at Kings Cross. I am not sure what the representatives were going to do, but I suspect they would have been getting hold of ticket machines and issuing affected customers with complimentary any permitted tickets – which they would then end up accounting for through ORCATS.
On contracts
A couple of posts seem to suggest that a ticket holder has an absolute unfettered and unrestricted right to be carried to their destination. This in law is known as specific performance. The contract to be carried is not one for which a court would be likely to grant specific performance as a remedy for breach.
GC, on the face of it, committed an anticipatory breach of the contract by announcing it would not carry passengers on the specified trains. This breach is one for which damages and/or rescission of the contract are a valid remedy – in other words, GC would have to allow passengers to cancel their travel plans and obtain full refunds on the tickets, or pay to the passengers the costs incurred as a result of its breach.
This is precisely what it said it would do.
On coaches
Contrary to the apparent beliefs of some posters, TOCs do not have a limitless supply of coaches and drivers on standby to provide an on-demand replacement service when the railway service fails to go to plan. Expecting GC to pay for black taxis/PHVs/hotels is fanciful.