It’s one of those customer service calls you get in battle mode for. You set out all your papers and documents, you know exactly what you’re going to ask for, you have a glass of water ready, you take a deep breath, annnnnd – but wait. What if you had one more thing, just a little more edge that might tip the scales in your favor? An article in Pyschology Today talks about the classic customer service technique of “reciprocity.” At the call’s outset,