Swannie, my man - on this thread they know better than to ask ....
cos there aint none!!
There is none in the Biz lounge, I checked just after it opened - purely for research purposes. Not sure about the First Class area as I have not been there yet. Even the nice Spy wine was removed from Biz and is now only in First Class.
If you want champagne, you head down the BA lounge with a Gold Card.
