I recently UPGRADED A phone with the offered upgrade. At no point did it tell me or ask me to pay off the remaining balance on the phone I was upgrading. (It did ask me if I wanted to turn it in) Now I have 2 phones with the Same number that I am paying for. One of them is useless of course. AT no point did T-Mobile tell me this. I thought I was UPGRADING a phone not ADDING a SEPARATE device. This is blatant misrepresentation and downright dirty tactics if it’s legal.
I NEVER EVER HAD this problem with SPRINT.