After the collapse of its proposed $39 billion merger with AT&T earlier this year, T-Mobile USA sought to assure the public that it is in a position to recoup and maintain its customer base. The providers President and CEO, Philipp Humm, explained that his company made substantial progress during uncertain times, and will compete aggressively to win and retain customers by delivering compelling 4G services all at a great value. Then in February, the company announced several planned strategic investments, including a $4 billion network rejuvenation. However, while that is all great news for T-Mobile customers, it seems as though…