Grocer's Apostrophe example from T-Mobile

Oooh, nice. The most expensively-placed grocer’s apostrophe I’ve seen for a long time. A half page advertisement in The Times doesn’t come cheap. And when your ad only has a few words on it, well, proof-reading isn’t that onerous a task. But apparently it was all a bit much for T-Mobile and its ad agency. The company is merging its services with Orange, by the looks of things, and I wonder if a new advertising agency is responsible?