Technically you are correct, however good business sense dictates that the Sup should have went to talk with the customer to inform him he was screwed by the shipper. Then the next morning do a short trainning session with Mike to educated him on the policy in this situation. Once a customer gets to the building with requests to see a supervisor, then a sup damn sure needs to handle the problem one way or another. THAT'S why the get paid the big bucks.
I understand that but if the customer got the correct information from "Mike" there would never had been a issue.