Experts reveal why supermarkets want you to sign up for loyalty cards
By Mark Duell 13:34 Jul 10, 2024, updated 15:25 Jul 10, 2024 Share or comment on this article: Loyalty Cards: Are They a Scam? airs tonight at 7pm on Channel 5 Supermarkets have built an “ecosystem of data” from customers using loyalty cards as they make millions by “relentlessly mining information”, insiders have revealed. Data … Read more