What you need to know before porting to Xfinity

I've been trying to port my number since Thursday 11/25. It has been almost 48hours since my phone was working. I have called Xfinity 6 times and have been disconnected, told nothing can be done, promised 3x that it will be working again in increasingly long time periods, but it is still not working. I spent 2 hours on the phone yesterday with level 2 technical support, who promised to call me back today on an alternate number at 6:00p. This didn't happen my phone is still not working. I am literally about to have a nervous breakdown being unable to use my phone to contact anyone and unable to leave my house as I am spending hours after work trying to resolve this issue. Is there anything anyone can do please I am begging for help.