This is not a complaint, but quite the contrary. On June 7th, 2019, I was at the El Cajon, California location to purchase a dozen donuts and a cup of coffee, when I noticed an elderly Chinese couple who seemed agitated, after being told by one of the Dunkin Donuts staff members that the coupon for a free donut with the purchase of a beverage, was not valid from a T Mobile phone.
The couple seemed perplexed by this news, and showed the coupon to another employee (I will not name stated employees, since they were following DD policy, and have no authority to change it themselves) without resolution, I contacted the Manager on duty, who explained the problem with to me and the couple, but stated that he would give them each a free donut.
I found the decision by the manager, to be in the…