All this talk about railcards:
As I understand it, a valid railcard needs to be held and presented on demand at the time of travel, not at the time of booking. National Rail Conditions of Travel (
https://assets.ctfassets.net/e8xgeg...e9b4e6/National_Rail_Conditions_of_Travel.pdf) states:
My Two Together railcard expired in February, I am fully aware of this, and I did not renew it.
At some point when two of us decide to make a trip to London I will buy railcard-discounted tickets and I will buy a Two Together railcard. Obviously I won't be buying a ticket for immediate or near-immediate travel, and will probably buy a physical railcard and have it posted to me.
That's all perfectly valid today (please correct me if I'm wrong) and all this talk about entering railcard numbers at time of purchase and so on won't work if so.
When I travel I will have a valid railcard, of course. I know that my last railcard has expired and I know that I need to buy a new one if I want to
buy use discounted tickets.
Separately, I have a Senior railcard which I use when I travel on my own, and Northern's Duo tickets mean it's not worth paying for a Two Together railcard for local trips.