"Tim Fardell" wrote in
message

On Fri, 12 Feb 2010, Recliner wrote:


I've found that the apparent gaps can stay indefinitely, but an event
such as topping up the card or reading it on a ticket machine
sometimes seems to correct the online history. It's almost as if
the data is sitting waiting in cache somewhere, but doesn't get
written to the online database until some event causes the cache to
clear. But the credit on the card always seems to be correct.

Having received the postal statement, I can see that both journeys
were recorded and charged correctly, but the gaps are still there in
the Web site display. In both cases, 'exit' events at Kings X are not
shown on the Web, but are shown on the postal statement. However, the
card balance is shown correctly in both places.

It seems that the Web journey history is indeed not reliable, which
seems very weird to me as I would assume it is based on the same data.

I think 'based on' is the key phrase. The Web reports seem to be based
on an incomplete/late copy of the original database. But, as I have
found, you seem to be able to force an update by, for example, topping
up the PaYG balance.