Do you know if he ever signed up for My Verizon online? If he didn't sign up and put in a user name and password and your cell number and you will be able to change the plan online. If that does not work call customer service at 1-888-294-6804. Also is the other owner never changed his security code, its normally the last four digits of the cell number.
is there anyway to change the plan on a phone without pin or answer to security question. the previous owner passed away and now i can not change the plan it is a prepaid setup but i would like to put a unlimited text bundle on there
If the previous owner passed away, and you are taking over the line (as it sounds like you want to do) I would advise that you go to Verizon with proof of death, and then do an AOL to put the account in your name; you can then set up the account to your liking.