On 29 Nov, 18:53, (Neil Williams)
wrote:
On Sat, 28 Nov 2009 00:38:02 +0000, Tom Anderson

wrote:
So you'd actually be buying a single, and paying for it with your oyster
card. Sounds sensible.

Yep, or a return. *To prevent it being given to someone else, it'd
have the relevant Oyster card number printed on it.

Neil

So Oyster would be a bank. It ought to pay interest.