Transport for London (TfL) has been forced to pay back thousands of pounds to bus passengers who have been overcharged using contactless cards.
A Freedom of Information request filed by Metro revealed that TfL has paid £11,000 in refunds after 1,800 travellers were charged twice using both an Oyster card and either a contactless debit or credit card.
TfL director Shashi Verma said: “If a wallet or purse contains several cards, it is possible the reader will detect one card without seeing the other.”
TfL has moved to increase its reliance on NFC-enabled cards in recent months, with plans to ditch cash payments on London buses this year. More than 10 million journeys have already been paid for using contactless debit cards.
Plans are also underway to accept contactless payments on the London Underground this year.
TfL has begun a publicity campaign at bus and tube stations to warn passengers to keep Oyster and debit cards separate when paying a fare to avoid a 'card clash', where the card reader detects and rejects both cards.
Verma added: “Just under one per cent of all Oyster and contactless journeys involve a card clash and we are seeing this number continue to drop each week.”
Contactless technology has become increasingly prevalent with high street retailers, while payments provider Visa has reported that the number of contactless payments has increased by almost 300 percent in the past 12 months. However a small proportion of retail consumers have also reported being charged twice by contactless card terminals, with customers of Marks & Spencer highlighting problems last year.