The police had confirmed latest cases this week and launched an inquiry after receiving several reports victims whose details had been used to make cash withdrawals across the world.
Several people were contacted by banks over the weekend to be told that withdrawals had been made from their accounts in Australia, Canada, Ghana, India, Thailand, Malaysia and the United States. The banks said that thousands more may have fallen victim.
Most of the victims used a Shell petrol pump on Uppingham Road in Leicester. A Shell spokesman said the company had launched an investigation into allegations of card fraud.
British security officials have been grappling with card-cloning, by which card details are surreptitiously recorded during transactions at petrol pumps and supermarkets and emailed across the globe for illegal withdrawals from ATM.