Buying a Railcard at first available opportunity

[Alfonso]

I understand if you get on a train at a station that can't sell you the ticket you want, you need to buy it at the first available opportunity, ie on the train, at a station where you change trains if there's enough time, or at the end of the journey. Does this also apply if you wanted to buy a railcard at the beginning of the journey and the boarding station couldn't sell it,or is that a completely separate matter?

 

[swt_passenger]

This just came up a few days ago, and the replies suggested that the rules about tickets would NOT apply to a railcard:

Unable to buy railcard at station ticket office, advice please

I have just been to my local station to buy a new two together railcard. All the railcard leaflets say it can be bought from a staffed station. Ticket office window was open, There was a helpful lady there, but she said she was traincrew covering and politely said couldn't use the main ticket...

www.railforums.co.uk

 

[Wallsendmag]

I understand if you get on a train at a station that can't sell you the ticket you want, you need to buy it at the first available opportunity, ie on the train, at a station where you change trains if there's enough time, or at the end of the journey. Does this also apply if you wanted to buy a railcard at the beginning of the journey and the boarding station couldn't sell it,or is that a completely separate matter?

Totally different I'd say