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Supermarket giant Morrisons has confirmed a 7-day rule that is in place across a number of its stores. The firm says a Blue Card Rule in its cafes means that members of the emergency services, as well as a number of other professions, can get access to a 10% discount seven days a week by just showing their card at the till…. The Blue Light Card is available for frontline workers, emergency responders, social care workers, and the armed forces. It costs £4.99 and is valid for two years