Complaint Review: Xfinity

I have been trying for FOUR MONTHS to get my second mobile number ported over to Xfinity.  Different reps tell me different stories.  The original sales rep sold us two new phones, claiming our old ones weren't compatible with their services, which I now doubt was even true.
I've filed an FCC complaint which caused them to dig in their heels and solved nothing.

Now, today, I'm on the phone with a rep in some foreign country who has given me a kaleidescope of different answers and claims, e.g. that the number on the 2nd phone can't be changed (it was initially assigned an incorrect number), but oh now it can be changed.

Why don't I just port back to Verizon?  Because Xfinity IS Verizon mobile.

Thank goodness this is not an actively used number.  This is obviously an industry that needs vastly enhanced regulation along with monopoly breakups.