The official Dunkin' Donuts website is the place to go if you've ever had bad service or long wait times at their drive-thru. Find the "Contact Us" page beneath the "Customer Service" section at the bottom of the webpage. Choose the "Store Experience" or another relevant category on the feedback form, and then be sure to include data like the store's address, date, and hour, as well as any other relevant information on the delay.
Dunkin' Donuts also has a mobile app where you may report problems under the "Help" or "Customer Service" section. A formal complaint detailing your drive-thru incident can also be submitted in this way.
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