LdF Retail Outlets page?
The Soho Wine Supply, 18 Percy Street, London W1 (PF 1901, Jade Nouvelle Orleans, Edouard, Verte Suisse, Duplais, Mansinthe and Blanche and Verte de Fougerolles)
Fortnum & Mason, Piccadilly, London W1 (Un Emile 68)
House of Frazer, Corporation Street Birmingham and Central Shopping Centre, Croydon ( Un Emile 68, Un Emile Sapin and Un Emile Blanche)
Lancelot Wines, 16 Bridge Road, East Molesey, Surrey (Jade Nouvelle Orleans and Verte de Fougerolles)
If your local wine and spirits supplier doesn't stock our absinthes ask them to contact us, we are always looking for good local distributors. If your suggestion is accepted we will give you a free bottle of your choice!
Perhaps you could email LdF in case there is someone new they haven't put on the page, yet.
The choice in Vinopolis is crap, even worse than in Gerry's. I would strongly recommended Soho Wine Supply. They are not too far away from Piccadilly - it's actually walkable distance (15 minutes or so) or you can take the tube, but you won't save a lot of time, because there's no direct line from Piccadilly Circus to Tottenham Court Road.
Fortnum & Mason no longer sell it. I spent a long time looking and couldn't see any sign of any absinthe (maybe La Fee XS, but I think that was in Selfridges on Oxford Street).
Gerry's, 74 Old Compton Street
Vintage House, 42 Old Compton Street
Both these Soho shops have big selections (including 1/2 gimmicky products to steer clear of). From recollection Harrod's has a smaller selection and may be more expensive than buying over the internet.