On Jul 22, 11:52*am, Walter Briscoe
wrote:
In message
of
Tue, 22 Jul 2008 01:43:55 in uk.transport.london,
writes

I had to take the tube to our london office today. Went down onto the
platform. 1 minute later I realised I'd left something at home and
went out again. Luckily I always check the gates and noticed it had
deducted a quid! So much for the 15 min grace period mentioned on here

I see no reason why Oyster does not use an "odd charge" tone for curious
charges to let the customer know there may be an issue.

by others. The lady in the ticket office was nice enough to put it
back on the card but how many other people have been done by this?
What next , automatic deduction from bluetooth enabled cards as soon
as you walk in the station?? FFS.

The (undocumented) 15 minute period is that you are charged for an in
zone journey if you enter and leave a station in 15 minutes.
If you enter and leave a station in longer than 15 minutes, you are
charged for an unfinished journey and an unstarted journey.

OTOH, you are allowed 120 minutes to travel between any distinct pair of
stations, e.g. Leicester Square and Covent Garden.
What is the shortest journey between a pair of distinct stations on the
Underground?

I don't know if Bank & Monument or Euston Square and Euston, etc. count
as distinct stations for such purposes.

My previous anecdote suggests that the former are. I forgot to touch
in at Euston (gate open), so went down to touch the Bank DLR validator
and then touched out at Monument and got charged the correct zone 1
fare for my journey. But one of them being DLR may have made a
difference.