Hong Kong shoppers may have saved less than they expected – or nothing at all – through supermarkets’ “buy-one-get-one-free” and bulk-buy promotions, the city’s consumer watchdog has warned, urging residents to compare unit prices instead of relying on promotional labels. The Consumer Council on Monday released the findings of a survey of 222 products sold by AEON, ParknShop and Wellcome between September 2025 and July this year. It found that the actual discounts offered in some promotional...