Dunkin’ is offering its DD Rewards members an Any Size Frozen Drink or Signature Latte for FREE for a limited time. To get the discount, use the promo code: MUNCHKINS23 at the bottom of the page in Dunkin Rewards and refresh your page to see the reward.  You must use their mobile app to get this deal and it’s only good for 7 days after activation. Offer available while supplies last so be sure to add it to your account sooner than later. If you are not a DD Rewards member, it’s Free to join. DD Rewards is Dunkin’s Loyalty program, very similar to Starbuck’s Rewards, you earn points for every dollar you spend and you can redeem them more Dunkin’. [Store Locator]