just tossing out ideas here as I'm not British but:
Have you tried something like
The National Alcohol Helpline-UK - Tel: 0800 917 8282 Offers help to callers worried about their own drinking; support to the family and friends of people who are drinking; advice to callers on where to go for help.
or the addaction group, Canterbell?
http://www.addaction.org.uk/
D