Peeterman Artois only £1.50 for 4 x 440ml Cans at Asda

I have just been into my local Asda and found these for the bargain price of 37.5p per can! Bought 5 packs but they still had about another dozen packs. This was an on the shelf reduction price and not clearance stickered goods. I can't find it online, so it is probably in store only