Hi, I was recently given an overissue of Â£3000 in which tax was deducted, bringing the total down to Â£2500 roughly. Anyway my pay office have got in contact with me and told me that I have to return all of the Â£3000. Is this legal, cos I will be out of pocket by Â£500. I will be able to pay the Â£2500 back, then they say the rest will be taken from my pay monthly. Please help cos I don't believe this is fair.