Please be gentle, I'm not sure what the protocol is for submitting posts yet.
I saw plenty of these jugs in Asda, Cardiff Leckwith today for £5. Packs of 2 filters also £5, but not as cheap as 6 in Argos for £13.99. Its showing as £10 online so in-store only.
I needed a new filter jug, perfect for me for £5, fits in the fridge too. Cheapest I've seen elsewhere is approx £10 in amazon and Argos.