Poor customer service all the way to the top
The nonchalant, cavelier attitude of everyone at the store level, all the way through corporate over the issue tells me everything I need to know that Dunkin is not what it once was and no longer puts customers first, it's a money grab. They've lost a customer, not that they seem to care. Perhaps going back to the values that the company had and training staff/management to handle matters in a professional, courteous manner should be reimplemented.