I saw this offer in my local FarmFoods in Sutton, While trying to find £1 ben and jerry's :L not sure if this deal is national or local.
12 lucozade sport bottles for £4 works out around 33p a bottle. I've seen 2 4 packs for £4 in some of the larger supermarkets before, but it seems farmfoods is trumping them by selling 6 packs for the same price. best price I've seen for a while.
I only saw the orange flavour, but there may well be other types. I didn't search too much.