I don't think it works like that, any more than you can go into a shop and ask for the price of three bottles of beer because you bought six yesterday and now they're on 'buy one get one free'.
Hmm.. I don't know. I think the analogy might be closer to:
Go into a shop after seeing an advert outside saying "Buy 3 litres of milk for the price of 2!" and then discovering inside, when you get to the till with your milk, that the offer has been delayed..
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Go into a shop after seeing an advert outside saying "Buy 3 litres of milk for the price of 2!" and then discovering inside, when you get to the till with your milk, that the offer has been delayed..