I was in my local Asda in Stevenage. This store is a Supercentre and is undergoing a refit. As a consequence they have installed more chiller cabinets and noticed a lot of these muller twelve packs for only three quid, which I think is a bargain. It's a mix of flavours. They also had muller light twelve packs for the same price. They seems to be only some multipacks with this offer price as others are priced at four pounds within this store. At this price it's worth a mention. Is it national? Probably given the ticketing but that's just a guess, check your local Asda. It's on their Web page as well. Enjoy.