On Jan 2, 8:19*pm, jedy wrote:
Tried to purchase a monthly travelcard with my student Oyster recently,
which expires in October 2013 btw. The ticket machine displayed the full
price and not the student discount. Tried logging in and purchasing at
home to check it wasn't an error and it still gives the full price. What
can I do?

--
jedy

Oyster online has never been able to sell discounted season tickets
(it does now advise that on the entry page and, I think, during the
purchase process).
Some National Rail machines default to the adult price and require you
to select the discount.
If you take your card to a Tube station ticket office or Travel
Information Centre (Victoria, King's Cross, Liverpool Street, Euston),
they will check whether your discount is still set correctly.