Instructions:I've done a search and can't find it.
It was sent to me in an email, but I don't think it's account specific, because the codes start with XX. Free delivery at the moment as well, so you can order as little as 12 bottles and still get £5 off and free delivery!
£5 off any order - XXFDP7
500 extra points - XX9V62
Both valid until 26/12/2010