during its initial launch period in . This deal allowed customers to lease two handsets for approximately $31.25 per month —the standard price for one device—effectively providing the second phone for free after monthly bill credits . Historical Promotion Details (April 2017)
T-Mobile recently offered a Buy One, Get One free line promotion for existing customers with at least two paid lines. T‑Mobile Introduces Its Most Value-Packed Plan Ever sprint buy one get one free s8
At least one new line of service had to be activated on a qualifying plan. during its initial launch period in