The Guardian

Being charged different prices for the same product, depending on which branch of Tesco you are in, has attracted VICTORIA MOORE's attention this week. Not only Tesco, though: I was surprised to find that a wine I had tasted, and liked, at Marks & Spencer cost 50p more at M&S Covent Garden than it did elsewhere.'
Moore's selections include 2006 Organic Domaine Grand Milford Vin de Pays de Gard Ros (5.99; Marks & Spencer, currently on promotion at 4.79 or 5.27 in Covent Garden M&S); 2005 Le Vaglie Verdicchio dei Castelli di Jesi (8.99; Booths); and 2006 Chile Cono Sur Viognier (5.49 down to 4.49; Somerfield).