47kg propane prepay

ajwb500

I haven't had to buy any gas since before Christmas last year, around about this time every year I buy 4 lots of 47kg bottles and make it stretch for the whole year as best I can. I seem to get 4-5 bottles for an annual usage (no it isn't a small house, it is 3 bed and yes I have gas cooking but one thing that I think saves is I have an electric shower).

I have looked and looked online but there don't seem to be any sites that do monthly dd / prepay so that when you need to buy annual gas it is already paid for.

Has anybody come across such a scheme?