500g tub of Anchor Light spreadable butter is scanning at £1.14 instead of £2.00 which is the current mark down from £2.28. Bought one, expiry date 19/07/10, went back to get some more from the shelves. All date codes should work though as it is a standard number from the barcode 570736110013.
It looks as though they are putting on a big Anchor promotion in my store, Edmonton, London, but it looks like a misprice as the self service weight machines are flagging it up as double weight.
The 250g price is £1.14 and I guess someone has just coded it up wrong. Time to fill your boots !