In message , Paul Scott
writes

Fix those glitches and I'd be much less critical of the charge.

If they follow the rules I don't see how they get hit. Anyone
encountering a problem with validation due to equipment failure or
emergency evacuation will be treated sympathetically and would have the
£4 adjusted away. If they follow the rules then they would otherwise
have touched in and out properly and thus there would be no risk of
overcharging or missed caps.

Paul C

Admits to working for London Underground!

As an irregular user of LU services I now have a PAYG Oyster card, and it
was failing to touch half way through a journey when transferring NR to LU
that confused my account on a trip from Marylebone to Watford, changing at
Harrow on the Hill. The readers at Harrow simply say Oyster PAYG users must
touch out (or something like) - couldn't they, and those at any 'transfer'
point be more informative?

Is Watford within the PAYG area? If not, that may be part of your
answer.

I know my staff pass doesn't work the barriers there, even though it is
actually valid (by grandfather rights).
--
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)