Porting from TracFone

I ordered two cell phones, one for myself and another for my father. My service was through Straight Talk, and I was able to activate the phone no problem. My father has a TracFone, and I spent over 2 hours going back and forth between Tracfone and Xfinity. I received the correct account number from Tracfone, verified again it was correct, yet when I tried to activate the cell phone from Xfinity, it kept saying the account number was incorrect. When I called Xfinity the agent told me it was wrong and she would call back to see if I had the correct account number. There is only one account number, and an agent at Tracfone verified I have the right account number. Of course I never received a call back, but it's pointless anyway. There's only one account number for the phone, given by Tracfone, yet that's still magically incorrect. A lot of time wasted with absolutely no resolution.