In message , at 10:46:32 on Tue, 18 Dec
2012, tim..... remarked:

You can only get anything at all if you fully register your card.

Most people do have their Credit Cards registered though. The ones which
aren't (prepaid) can't be used on the buses anyway.

Unregister cards show balance remaining and nothing more

(At least that's how it used to be, due to the stupidity of having to
have a secure password for something so trivial, I've forgotten my
login and can't reset it. And I can't start a new account because the
card is already registered to a different one).

The Oyster helpline would be able to sort that out for you. I had a
similar issue (afaict was never told the password for my Onepulse card,
but there was an account opened for it).

Expect it to take half an hour though
--
Roland Perry