The reward for completing a Dunkin' Donuts guest satisfaction survey is the respondent's choice of either a coupon for a free donut or a 3-ounce soft-serve ice cream cone with the purchase of a medium or larger beverage, as of 2015. The selection is one of the survey questions, placed in the middle of the questionnaire. The receipt used to take the survey becomes the chosen coupon with a validation code generated by the survey site written on it.
The survey encompasses both the Dunkin' Donuts and Baskin-Robbins chains. A purchase from either can be used to take the survey, and the beverage purchase required to redeem the coupon can come from either chain regardless of the reward selected.
The survey itself is available at TellDunkin.com and requires a receipt to fill out. There is one open-ended question, with the rest of the questions in a multiple choice format. Sample questions include what was ordered, whether the desired item was available, how likely the customer is to recommend or return to the same Dunkin' location in the next 30 days and the store's cleanliness. Many of the survey questions are entirely optional, including income, ethnic heritage, gender and travel patterns. The whole survey should take approximately 10 minutes to complete and is available in both English and Spanish.