A HSBC bank logo is seen on a sign outside a branch of the bank in London on October 22, 2015. Britain's Competition and Markets Authority (CMA) released its provisional findings into the role of Britain's major banks, including Lloyds Banking Group, HSBC, Royal Bank of Scotland (RBS), and Barclays, finding that more than 57% of customers had been with their bank account provider for more than ten years, and those with an overdraft were less likely to change providers, even though they could make savings of up to 260 British pounds (355 euros).  AFP PHOTO / NIKLAS HALLE'N        (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)