In message ,
Colin Rosenstiel writes
Or people arriving at airports who can't buy through tickets to NSE
destinations. I can buy a ticket from Cambridge to Heathrow but not from
Heathrow to Cambridge.

That's odd. I *can* buy a ticket from Heathrow to Luton, but cannot get
a discount with my NSE Network Card on it, so do so only if travelling
at a time when the discount wouldn't apply. I assumed this was possible
to all NSE stations, but obviously not.

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Clive Page