In message
,
Mizter T writes

Incidentally I recall being rather unimpressed at the information
provided at Wimbledon when Oyster first arrived, though eventually
posters were displayed which were sort-of helpful. I'm not sure of
what the situation is like there now

Last time I was there, the need to touch out at the ticket gates was
clearly signed, but a further degree of confusion was added by a notice
not to use the yellow reader adjacent to the manual gate when leaving
the station!

--
Paul Terry