Be Polite As a Customer
Little manners, as you can see in the picture can always get you what you want. As a customer, your approach can sometimes make the difference in the quality of service you receive from a customer service agent even in unconventional occasions.
Occasionally or most times we feel because we are owed a service, we then speak down to the customer attendant who eventually would deliver this service. I think we must realize that we are indeed speaking to a human being who's got emotions and not some automated voice recorder. An Empathic request will receive an Empathic answer; remember iron sharpeneth iron.
Use polite approach in your transactions even though the popular catch phrase says customer is king!