Can't activate service at new address

I recently put in a request to move my service. I made some changes that required new equipment and the return of old equipment. I have not been able to get my internet service activated at the new address. I've tried phone support but the signal for Xfinity mobile is pretty bad where I live and I don't have Wi-Fi that I can jump on to do Wi-Fi calling. Speaking of that, I have been told that my Xfinity Mobile account is no longer connected with my service and that needs to be reestablished. I am a real estate broker in rely heavily on my phone and having internet service so I am in a bit of a pickle.