In message , at 11:33:50 on
Mon, 9 Aug 2010, Chris Tolley remarked:
I would have thought that the question of matching things up between TfL
and whoever holds the financial records is possibly irrelevant. All
that's needed, surely, is for the bank to trawl through the credits, and
if it finds identical amounts with identical timestamps (and possibly
identical (or consecutive) transaction-ids) then just refund one of
them.

tfl's bank, you mean? Yes, that's in effect getting tfl to do it. I
wasn't going to assume all the double-debits were identically timed
though - rather, starting off with "being on the same day" and see where
it went from there.
--
Roland Perry