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Why do supermarkets have loyalty cards? (feddit.uk)
submitted 1 month ago by to c/askuk@feddit.uk
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Can't they just track everything you buy using your payment card?

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[–] [S] 2 points 1 month ago (3 children)

I mean, why bother with the loyalty card? Can't they just track the payment (debit, credit) card?

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  • [–] 2 points 1 month ago (1 child)

    You could have multiple cards; idk how it works for the US but maybe they cant see the card owner? So if a loyalty card is used with two credit cards it is useful to know it's most likly the same family or even the same person?

    Wild speculation

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