It could mean you could be charged twice for your fare, for example if you have a weekly travelcard loaded on your Oyster card and when getting on the bus you are charged on your bankcard.

BBC: London bus contactless system charging wrong cards

The trainee chef said he was on the same bus as her and handed her back her travel card when it fell on the floor.

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TfL said every day 36, 000 people board a bus and find they have insufficient funds on their Oyster card to pay for their journey and that at least 500 people a day try to pay their fare with a high denomination note for which the driver does not have change.

BBC: London buses offer contactless card payment

Bus passengers in London can now choose to pay fares with a contactless card, Transport for London (TfL) has said.

BBC: London buses offer contactless card payment

More than 35, 000 passengers a day get on a bus and then realise they don't have enough on their Oyster card so this will offer an alternative.

BBC: The beginning of the end of cash and the paper ticket?

Every bus is now 3G integrated and it sends a signal straight away checking the card has enough funds on it.

BBC: The beginning of the end of cash and the paper ticket?

Among the items discussed were how to improve competition between the city's other bus operators and the introduction of a "smart ticketing" system similar to London's Oyster card, which would work with different providers.

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