Extremely Frustrated with XFINITI - HELP PLEASE (Executive Customer Relations/File a Customer Commitment Complaint

We have been an XFINITI / COMCAST customer for 23 + years.   We paid an average of $400 per month for our TV cable and internet.  We called XFINITI on the phone and they suggested we turn in 4-5 of our boxes and STREAM instead in those lesser used rooms/tvs.   What happened is that they changed my wife from our legacy/grandfathered plan to a lower cost plan that didn't have the sports channels we wanted included the local one for the SF Giants/A's and Warrior games.  When I called back they told me they could not put us back into our original grandfathered plan and to back to it, it would be a much higher monthly price.  I was very upset and turned in our 4-5 cable boxes at $13 or so each per month and after all of that my rate never changed!  All because they switched us to a lower cost plan that didn't have the channels we wanted.    After that shoddy treatment, for some dumb reason, I decided to change our AT&T cell phones for our family of six (6 phones) over to XFINITI.   The sales person in Walnut Creek, "DANIEL" for whatever his reasons created a NEW account for us which has caused us nightmares.   Four of the six cell phones were moved to the new account and two stayed on the legacy account.  I had trouble communicating with XFINITI as they were confused by our TWO different accounts and we had issues getting the right sign in and passwords for both accounts.  What a pain.  Then, because Daniel set us up as a new account he sent me home with a new modem and other equipment that had to be installed.  We had to cancel the first tech appointment via the XFINITI online support and a person assured me that he cancelled and rescheduled the tech.  Well the tech showed up anyway, and no one showed up for the rescheduled appointment on time, (they were 3 hours late) so then XFINITI cancelled our internet service and our TV service causing chaos at our house.  Then, finally, a tech came out and installed all of the new equipment, even though some of it should not have been installed as we have a SAVANT system in our home.   As a result we have to pay our alarm company $250 to "open the ports" that are closed on the new modem AND we no longer can change channels on our TV because the foolish installer removed the red lights that allow the remotes to work with our family room TV.   We now have to have our SAVANT service company out to reinstall the device that hangs from the TV and connects to the modem so we can change channels.   We emailed the foolish tech's boss, Daniel Garcia, who works out of Concord, CA several times and never got a response, even though he gave us his card and told us to reach out to him if we have "problems"  Well, we have lots of problems and now lots of costs all due to converting our Cell phones over to XFINITI.   I don't know where to go from here but we need some satisfaction from XFINITI and trying to do that via the phone is IMPOSSIBLE.   Please help us.  Thank you.