Fnac has a point system with a card. If you buy something you can earn points. But if you forget your card you can never get your points afterwards. We bought a phone but forgot our card. A few days later we went back with the receipt and the points card to credit the points. They said it is not possible to credit points afterwards. Only by returning the phone and buy it again. What a ridiculous action you need to do to get your points if you forget your point cards.