Winter Fuel Allowance overpayment

Hi

I've just had my WFA in my bank account and it looks as if it is incorrect. There are 2 of us and we get £100 each. This year we have got £200 each. As far as I can see there is no reason for this other than an error. I can't see how this can have occurred though because we get the amount automatically every year and there have been no changes such as bank account.

Neither of us has received a letter advising that the payment is due so until we get this I have no idea who to contact. There's nothing online that I could find about overpayment of WFA.

Has anyone else come across this before?