On 15 May, 17:12, Roland Perry wrote:
Sam Holloway wrote:
It is of course possible that there is some weird restriction on the
London International tickets, but that reading of the NFM would
hopefully preclude such a thing.

That's the wriggle room, isn't it.

The paragraph referred to above says that tickets with that validity
"should be issued with a destination of ZONE U123 LONDON", whereas yours
probably has a destination of LNDON ESTAR CIV.

So is the routing easement based on where you are heading (ie inside
Z1), or on what your ticket says is the destination??

I was wondering that... However, I've also been checking the fares.

STN-Seven Sisters is £15.50. Plus £2.50 Oyster PAYG single = £18
STN-London International CIV = £20
STN-London Zone 1 = £17.50
STN-London St Pancras = £21

And there are probably a load of others I haven't discovered. :-)

Sam