Noticed this browsinf the net, and thought you cant go wrong with a free pint, only if there is a Greene King pub near you that is. :o)
You will need to change the pub though, as I just posted the link to my local http://www.gkpubs.co.uk/
This offer will get you either a free pint of Foster's, Carling, Carlsberg, IPA, John Smith's Extra Smooth, a 175ml glass of Santa Carolina white, red or rose wine, or a 16oz glass of coke or lemonade. Though prices vary, this will save you up to £3.25.