Got letter from HMRC. Apparently I owe 485 overpayment. Considering we haven't received any money from them in nearly 4 years I am not sure why it has taken them so long to ask for it. The letter stated that we will already have had a request for payment - err no, we didn't. I think I'd remember if I had to pay nearly £500. I got rid of all the documentation when we moved house - yes, stupid I guess but we hadn't received any for 18m at that time.
Have I got any recourse? I simply don't have it atm. And it seems utterly unreasonable to simply demand the money with no explanation.
thanks