Can't activate mobile phone - lost tech support after an hour

When I called to downgrade my cable, Xfinity offered a Mobile Phone at a great deal ($0/month for 2 years) which I accepted since my daughter has been asking me about my phone.

The E-mail said it had been assigned a phone number.

I have gotten the phone and trying to activate it. Through the mobile app, it said it wanted to port the number from somewhere, but I said no. Now the mobile app says there are no devices to activate.

I tried calling and it was horrendous to get a live agent since it kept wanting to send me to the app. I finally got a live agent who said we'd work on it. We are on the phone for an hour. He said the number that Xfinity assigned was a Verizon land line. I said give me a new number, and he kept working on it. At 1:05 hours, I got the Xfinity on hold message and it appears I lost him. I've waited 30 minutes if he calls back, but nothing.

And the phone doesn't appear to be activated. The App says it is waiting to be activated, but then it says there are no devices to activate.

I wish I could just return it and wish I had never agreed to sign up for a phone. This is terrible service. Yes, I would have paid more for Verizon, but the phone would have activated in 30 seconds.