katie and thomas are the children of fiona watson, who ran a post office in gainsborough with their dad 21 years, i think. yeah. 21 years? 21 years. yeah. it's since closed down, but when they moved there, aged eight and ten, life was good. it was... ..filled with so much love and happiness. we'd won the post office of the year award. we'd not been there for a huge amount of time and to win something like that was quite a big deal. people used to come into the post office just to have a chat. they didn't come in foranything, really. they'd just be like, "oh, i popped my head in to say hello." just a year after riding high with the award, post office auditors got in touch. money was missing from the accounts. as far as i was concerned, everything was absolutely fine. and then, the next day, my mum's being treated like a criminal. there was an internal investigation and a formal hearing, and when it was over, katie says her mum was given two choices. "admit you're guilty... "..and you have to pay back all the money "that we've said you've stolen, "but you can go home to your children, or.