Dunkin’s free iced-coffee offer backfires after the promo code maxes out in a matter of hours

What does “while supplies last” mean when you make the coffee right there?

Who doesn’t love coffee? It’s even better when it’s free and you can order from your phone. That was the premise of a promotional offer that Dunkin’ had made to coffee lovers everywhere on March 1. The company announced on Twitter that if you downloaded the Dunkin’ mobile app and used the promo code WINTERWARRIOR23, you’d get a free coffee.

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