Hope someone can help as I am currently feeling a distressed. Have been told today that I have been overpaid since I have started work at my current school over 3 years ago and now they are requesting I pay the money back. The basic story is this: When I received my contract I noticed that they had put me on the wrong point scale so phoned the HR department and explained the mistake to be told that it was that scale on the paperwork sent in from the school and therefore will be the scale I started on. I mentioned it to my performance management reviewer in our first meeting and they said they would look into it and come back to me if there was an issue - I heard nothing! Everything has been fine and I have progressed through the points as usual, however now I have applied for threshold they have noticed the mistake and now want all the overpayment back. My question is can they do this?