Do not Trust T-Mobile Company, their promotions or network. 4 lines 25$ /per line is scam

Update: After multiple customer service calls

Tactic -Do not worry about first two bills, every thing will be fine after that: It means, they will bill you what ever they want first two months. You will not get credit for those two months. For example if you have device credit ( phone on us) you will not get it.

After multiple, they kick the ball, saying you will get after 24 months. I am thinking, if I did not carefully monitor my bills and fight back, they would have continued to charge me what ever they want,

Tactic -Sales guys. Agreed I will be on $100, 4 lines plan, but put me on what ever plan and charged me a lot  for 2 months on wrong plan. Did not get the credit back for their cheating tactic. No email confirmation of what is agreed, because we do not know until two bills.