just been to my local asda (brighton marina) they have nestle fruit crunch ice creams bars reduced down to 50p per pack of 4, which in itself is a great offer.
BUT they are also included in a 2 for £3 offer, so when mine went thru the checkout they went thru at 50p fine but then also deducted the 98p saving for the promotion so in effect i got them for 2p for 2 boxes of 4.
would recommend grabbing them at your local quick before this is fixed! not sure if it will work online altho they are also 50p a box on the website and mention the 2 for £3 offer as well.
(have added the price as 50p as this is the offer price but as explained if purchasing 2 packs can get for 2p after discount)