I currently have 3 lines on the refund plan, if i upgrade one line to say moto 4th gen. will the other 2 lines remain on the refund plan?


ie can i have both refund plans and non refund plans on my account?


yes each line is independent as to what plan they have

if fact they must keep there plan as only 3.0 phones can have 3.0 plans (and 3.0 phone must have a 3.0 plan)