T-Mobile have surpassed Allttell, Verizon Wireless, AT&T and Sprint Nextel. Their score was based on four categories: sales staff, store display, store facility and price/promotion. Although "just" forth carrier ranked by number of total subscribers, T-Mobile is used to winning awards from J.D Power. Their current record in customer service satisfaction is 7 wins in a row, with the last one earlier this year.
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