FILE PHOTO - A woman wlalks into a branch of TSB bank in London May 27, 2014. REUTERS/Neil Hall

LONDON (Reuters) - Britain’s TSB bank saw a net loss of 16,641 current account customers in the second quarter of this year following a disastrous systems outage, data from Britain’s payments authority Pay.UK showed on Wednesday.

The bank’s chief executive Paul Pester resigned in September after a botched IT project saw thousands of the bank’s customers struggle to access their accounts or make payments.