I THINK the majority of bus commuters who were overcharged were
owed very small amounts of money, to the extent that it is not
worth the trouble to claim the refund.
It should not be too much trouble for the bus operators to
refund the overcharged amount at card readers on buses or trains
when the card is used.
If commuters agree, the bus company could donate the overcharged
fares, with interest, to charity.
David Loh