David A Stocks ) gurgled happily, sounding much like
they were saying :

If it's PAYG, what's the *problem* with several people travelling on
the same card...? Isn't it absolutely the same thing as one person
paying in cash for three tickets for themselves and the two people
they're travelling with?

No. Many people can use the card, but only one at a time.

I know they can't. But I can't see any reason why that should be - except,
as has been pointed out, the ODTC cap.

Think about it.

I have, thank you.