Edward Cowling London UK wrote:

I fail to see why I can use the buses out
to zone 6 for free, yet someone going for a job interview has to pay two
quid !

What's this "has to" all about? As has been said before, if they just do
two single tube journeys EVER, they have already saved more than the £3
deposit.

There was an action brought against an electricity company for charging
key meter customers more than those on quarterly bills. The action was
won and the electricity company had to give large credits to it's key
meter customers.

Most people on key meters have NO choice in the matter, as they didn't
have the credit rating. I am pretty sure that is why. You don't have to
pass a credit check to buy a PAYG Oyster.