LPG Auto Gas Help

Hi everyone.

Does anyone have an up to date UK list of where I can purchase LPG Auto gas for my Devon Aztec, parfticularly in South Wales near Cardiff/Newport. I am only aware of the Asda Petrol station in Pontprennau, Cardiff and it was closed today when I passed there this morning because of Easter restrictions. Apparently, Shell UK has taken the decison to remove LPG from its UK forecourt due to lack of demand.

Thanks for any help.

Adrian & Judith