On Jan 14, 12:22*pm, "Paul Scott"
wrote:
Oyster decided that my journey was long enough that it must have
gone through zone 1, and charged me £2.70.

Quite a regular question, this one. The answer is always that 'certain
journey pairs are deemed to be via zone 1'.

Yes, I've lurked a while and got that impression.
I just wondered whether the bus trick might solve the problem until
they implement a better system.
But I don't know if a bus journey actually cancels an outerchange, or
if it would still count if it was within the time limit.

Also, it only works for me because I have a travelcard, and because
there is a bus station between the two real stations at SB. I wonder
if ticket offices can force a journey to be completed, possibly by
selling some kind of zero-priced "null oyster journey".