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Payroll problems mean one lucky government worker was overpaid by more than £17,000 - but they'll now have to repay the money.
The figure has been revealed in a Freedom of Information request about the new payment system for public sector staff.
It was brought in last September - and the largest overpayment was £17,217.85.
In its response, the Cabinet Office says the cash is being repaid back to the government.