India, May 19 -- On May 19, Dunkin' is giving away 1 million free coffees to both customers and rewards members as part of a special one-day event.
To grab this offer, customers just need to enter the code coffeeisfree in the Dunkin' App. Rewards members will get a certificate for one free hot or iced coffee, although cold brew and extra-large hot coffees aren't included. You can redeem the offer in-store by scanning the app or through mobile orders, and there's no need to make a purchase.
Once activated, the certificate stays valid for seven days. A spokesperson from the company mentioned that this promotion is simply "just for fun."
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Dunkin' has done s...