I still have an old plan (before April 19,2015) and I have a $150 positive tab balance on my account. As I was under 18 when the phone was purchased, my account had to be linked to my father's and I've had to pay my bill through him. I am now 20 and would like to upgrade my phone and have my own account so I can pay at my convenience but I don't want to forfeit my positive tab balance.
Would it be simpler to upgrade my phone and then unlink accounts or just forfeit the positive balance to avoid all the hassle? Would I be able to transfer my new owing tab balance to the new account or would I have to pay off the new tab outright before unlinking accounts?