Thanks Diane for the info!

I've just had the following message from the organisers:

Please note that, due to the Selkirk double booking the room, we will be at a different venue - not too far away. It's GJ's Bar, 62 The High Street, Colliers Wood, SW19 2BY. We'll be in the back room. The nearest station is Colliers Wood on the Northern Line and a 57 bus stops by the venue.

Frantically Multimapping.... If we don't get along, have a Fab evening!!