Found these in the Leigh store, also had a lot of 'world foods' on clearance in the world food aisle, some for as little as 10p. No longer available to buy online so looks like a national clearout. They stocked 2 different carton designs of this juice but both still scan at 30p. I'll add a pic in first post of the other design for reference.
Worth checking your local Tesco if your calling in.