Matthew Dickinson wrote
On 27 Jan, 21:00, Michael Hoffman wrote:

Registered tonight at King's Cross St. Pancras Tube Ticket Hall,
where
there is a large sign advertising railcard discounts on Oyster
PAYG.
Took about 15 minutes, including the need to register my card. They
entered my photocard number, which I suppose means I am expected to
take
it with me everywhere.

Maybe the reason for not having a discount on Network Railcards or
Annual Oystercards is the lack of a photocard?

Senior Railcards, which are included, don't need a photocard. Annual
Gold Cards and Network Railcards however give no discount before 10:00
M-F (09:30 of other Railcards) and there is also the M-F minimum fare
of £10.00 for Network Railcards.

Roll on simplification!

--
Mike D