A new report from Arizona State University’s W.P. Carey School of Business tells us Americans are less happy with the customer service we receive. With many of us headed to shopping centers and malls to wrap up Christmas shopping, we may become keenly aware of this trend. The number of households experiencing “customer rage” - they were very or extremely upset about the company response when they complained - jumped to 68 percent from 60 percent in the last survey, in 2011.