Supermarket loyalty cards do offer genuine savings, the UK’s competition watchdog has found, but it said people should still shop around.
The Competition and Markets Authority (CMA) examined 50,000 products on loyalty price promotions across Tesco, Sainsbury’s, Morrisons, Co-op and Waitrose.
It found “very little evidence” that supermarkets were inflating their “usual” prices to make promotions look like a better deal.
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Customers made an average saving of between 17% and 25% across the five supermarkets the CMA examined.
