is there not a "countrywide" near you?
Dont mention them!!
Used to use them.....then key stopped working.....asked for new key.....they sent......still didnt work........gave up........and dont think they are much cheaper anyway
At the moment .. countrywide is 57.5 p/ltr, shell is 58.9. autocolour in Wootty B is 62.0, and I don't know the calor price ... but countyrwide are winning IMHO .. 
Thats all the Swindon LPG I know of ...
Do you mean the place in Gypsy Lane?? Im gonna go see how much they charge today.....as Shell garage still wont have any......but normally when shell do have supplies....theres not much difference between them and Countrywide.....plus my Omega seems to run better on the Shell stuff.......i think its mixed with summat else :-/
Yup .. filled up there once when I first got the LPG ... seems a reasonable system, but I don't know their latest price. You have much more experience with LPG than I .. so far I've not noticed any diference between brands (other than cost!!), although in theory I believe the propane/butane mix can vary and will give different characteristics. I like the countrywide place on both cost and convenience ... 24/7 and don't need any cash/card handling .. simply hits the account

.. but I know some folks don't like that and prefer to "pay as they go" ... horses for courses I guess ..