Can someone please explain how this works? ATT is giving me a 500 credit for my trade in device that is from them because I met the criteria, correct? So therefor my monthly bill for my phone is 24.45 for 36 months? Which comes down to 800? (24.45 x36) But I have ATT next up, does that means once I have paid 400 (50% of the $800 ) that means I can upgrade again? I want to make sure I won’t be locked up to 36 months before I can upgrade or even longer than a year. Can someone please elaborate it? Thank you!