More than 16,000 customers have deserted the TSB in the wake of an IT meltdown earlier this year. The figures - released by the payments operator BACS - show the net loss in accounts between April and June. However TSB, which has 5.2 million customers, said thousands of people had also opened accounts during the period. As many as 1.9 million people were left unable to access their own money in April, after the bank tried to introduce a new computer system. The crisis resulted in the resignation of the bank's chief executive and an enquiry by the regulator. The Financial Conduct Authority (FCA) is still considering whether to fine the bank, after it was judged to have misled Parliament over the issue. The number of customers switching their accounts elsewhere is likely to be exacerbated by further computer problems experienced by the TSB in September.

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