In message
CJB wrote:

Recently I obtained a Hillingdon Community Services card which doubles
as a Library user's card. And put it into the same card wallet as my
Oyster card - in which I also keep my bank card. Suddently my Oyster
card stopped working on trains and buses, and even the Heathrow
Connect portable validators wouldn't recognise it - to considerable
embarrasment. The culprit was the Hillingdon Community Services card -
which seems to use the same technology as Oyster and was causing a
confict. An irritation 'cos now I have to keep them in separated. CJB.

Yup, I have the same problem with my Southampton old codgers bus pass.

Paranoia hint for people like David Hansen, if you've a new passport with a
chip in and are worried about it being remotely scanned, keep an Oyster card
in with it.

--
Graeme Wall

This address not read, substitute trains for rail
Transport Miscellany at www.greywall.demon.co.uk/rail
Photo galleries at http://graeme-wall.fotopic.net/