My local Majestic (Twickenham) has Samuel Adams Rebel IPA marked down at £1 a bottle (£6 / 6 pack or £24 a crate - don't think you can buy individual bottles). Also Peroni and Samuel Adams Boston Lager, but the Rebel IPA is definitely the star of that lot. Lovely beer, reminds me of Punk IPA but a little stronger and slightly sweeter. 6.5% ABV so pretty strong.
Short dated for the end of August. Sure it'll be fine for a few months after that. No idea if local or national.