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Why do supermarkets have loyalty cards? (feddit.uk)

submitted 1 week ago by pottery@feddit.uk 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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[–] Dultas@lemmy.world 2 points 1 week ago

Purchase information track, contact information as they requested address, phone, email, but didn't verify in most cases. This could be used for targeted marketing or just mailing flyers.

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