T-Mobile waited until Friday afternoon last week to announce its latest “Uncarrier” move, and now it looks like we know why: Hundreds or even thousands of T-Mobile subscribers have taken to Twitter, Reddit and other online forums to voice their frustrations as T-Mobile puts an end to a program that was saving thousands of customers a substantial amount of money on their wireless bills. “Beginning April 1, T-Mobile will be moving away from employer rate plan discounts and replacing them with a T-Mobile reward card of $25 each time an employee purchases a new device,” T-Mobile CEO John Legere wrote in note on the carrier’s blog. “It’s simple, clear and transparent – like everything we do. For a family of four