In message , at 14:36:52 on Fri, 16
Oct 2015, Clive Page remarked:
I have just renewed my Senior Railcard. I now have the problem of
loading the discount on to my Oyster card. The Senior Railcard website
says "take it to any London Underground ticket office" ignoring the
fact that these are closing down faster than one can count.

Are there any left in central London, and if not how can one get this done?

You are supposed to be able to get this done by approaching one of the
invisible helpers lurking around the ticket machines, who replace the
lurking invisible helpers who used to be behind a window.
--
Roland Perry