On 17 Oct, 21:46, "Colin McKenzie" wrote:
On Sun, 17 Oct 2010 20:16:43 +0100, GSV 3 minds in a can *

wrote:
I entered Sudbury hill on the pic line. I realised that there were
severe delays from the announcement. By that time I had already
touched in.
I touched out within 30 seconds of touching in and thought nothing of
it.
The next day £4.20 was taken from my card sudbury hill- sudbury hill.

This vindicates my decision not to touch out or touch back in in similar *
circumstances yesterday. I just missed a train, with 10 minutes to wait *
till the next one, so I came out again to make a phone call.

I explained what I was doing to the station supervisor.

But here's another question for the assembled wise ones. It would have *
been useful to use the time topping up my PAYG, as I wasted time doing *
this later. Does anyone know what happens if you attempt to top up an *
Oyster Card while it's in touched-in state?

Hmm. Certainly topping up at an OSI (journey still open) doesn't do
any harm, because I've topped up at Canary Wharf before touching back
in at Heron Quays to continue a journey.

That's not actually touched in though.

Touching in when already touched in certainly does unresolve the first
journey (and in my case presumably would have started a new one, if
only the maximum fare hadn't taken my balance too low).

Topping up when touched in; dunno. Maybe you will have to volunteer
to do the experiment?

It ought not normally be possible at a station with barriers, but it
might reasonably be attempted at a DLR station where the pad and
ticket machine might be adjacent.