MINNEAPOLIS--(BUSINESS WIRE)--In 2014, T-Mobile had the highest satisfaction with customer service calls of the nine communications service companies included in the National Customer Service Survey, Vocalabs’ ongoing study tracking customer service quality at major consumer-oriented companies. Based on telephone interviews conducted immediately after a customer service call, AT&T scored the highest in Company Satisfaction, Willingness to Recommend the company to a friend, and Willingness t
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