POST OFFICE bosses must repay massive bonuses that they incorrectly received for working on an inquiry into the wrongful prosecution of hundreds of the publicly owned company’s workers, MPs demanded today.

Many subpostmasters were convicted as a result of accounting errors caused by the faulty Horizon IT system over a 20-year period.

Some have had their convictions overturned and have received compensation since a government-initiated independent inquiry into the scandal, led by retired judge Sir Wyn Williams, was launched in 2020.