The Richmond shop closed several years ago.
The next nearest I know is Kensington Church Street and they are too small to have a table.
The
GW in The Plaza, Oxford Street, has a couple of tables.
Dark Sphere, near Waterloo Station might work for you (on the assumption that if you live in/near Richmond, Waterloo is a relatively short train journey.)
http://www.darksphere.co.uk/shop.php