I bought a camping stove and we are due to go away tomorrow but I just realised the gas cartridges I bought in B&M are not sufficient and I need a 904/907 cylinder thingy. I can only find Halfords that sell an empty cylinder locally, is it possible to buy a full cylinder anywhere? Online people are suggesting a 7kg Calorgas as a substitute but I really don't want anything too big. I have Decathalon, Argos and a camping shop locally but on checking their websites none of them seem to stock it.
Any ideas?