I ' m holding onto my 2 for $ 100 plan with 14 GB hotspot for as long as i can especially since I got 2 free lines during the recent promo giving me a total of 4 lines for $ 100 . I do remember something being said about a certain time frame , but can ' t find anything concrete now . Just did a quick google search and found a tmobile announcement mobile . c o m n e wsandblogstmobileoneamped . htm stating And , for existing TMobile customers , the Uncarrier is standing by its Uncontract the company ' s longheld commitment that only customers should have the power to change their plans , not wireless companies . Existing TMobile Simple Choice customers can keep their plan as long as they want and we won ' t raise your rates .