In message , at 14:31:18 on
Fri, 13 Mar 2009, Davide Trani remarked:
What's the disadvantage of an Oyster-held Travelcard as opposed to a
paper one? In other words, where will it not be accepted that a paper
one would.

2for1 offers are valid only with rail tickets or paper travelcards
(with rail sign on it)

Ah, right. Perhaps because the venues concerned don't have Oyster
readers (to verify that you have a travelcard loaded).

Seems like quite a big glitch in the system.
--
Roland Perry