Hello everyone, I am really new with iphones. I just bought a iphone x from a pawn shop wich is threw sprint. But i want to add it to our family plan on verizon. I called sprint and they will do nothing for me unless the previous account holders call in.. Can anyone help me please? Or point me in the right direction even if i have to purchase a third party software is fine.. I just need to know the safest route possible. Thank you for your time in advance.