Dunkin' Donuts offering 1 million free coffee: Here's how to grab your fav cup of joe today, see promo code

New Delhi, Sept. 24 -- Dunkin' Donuts is giving away a million free coffees! Yes, it's actually true. The popular American doughnut chain announced in its Dunkin' Diehards Instagram broadcast channel on Thursday, Sept. 24, that it is offering free coffees with L.L.Bean, who recently launched a merc…