You (and most of us) need to read about English law - it's the branch called TORT. Putting an item in a window with a price is just an "invitation to trade" from the seller, it's NOT a binding offer, which is a shame :-( Surprisingly, it's you that makes the "offer" when you go in and quote the price, they can refuse your offer.
You (and most of us) need to read about English law - it's the branch called TORT. Putting an item in a window with a price is just an "invitation to trade" from the seller, it's NOT a binding offer, which is a shame :-( Surprisingly, it's you that makes the "offer" when you go in and quote the price, they can refuse your offer.