Home / GSM ARENA / GSMArena.com / T-Mobile's customer service is in decline T-Mobile's customer service is in decline Monday, 6 December 2021 GSM ARENA GSMArena.com According to a report from Bloomberg, T-Mobile's customer service has been in decline since the Sprint merger closed last year. Customer service was once one of the carrier's top traits. Share on FacebookTweet on TwitterPlus on Google+ Posted by Charles Mangya
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