Unhappy with xfinity

I’ve been with them over 20 years but yesterday I lost my cool and ended my relationship.  Then things got worst.   Xfinity urged me to get a new gateway even though mine was fine.  Finally changed them, worked fine for about 40 minutes, turned orange and that was that.  Spent over an hour with a nice lady but it didn’t work.  Told me to put old gateway back but now that didn’t work.  Earliest appt., this was Sunday, was Friday so no WiFi, tv didn’t work, luckily my phone worked.  Friday I got that stupid Xfinity’s auto message that the tech is pulling up in front of your house.  No one out there.  I live in an hoa so they have to call for the gate to open.  Again, asst. says he’s there, greet him.  Nothing.  Then my phone rang, pushed 9 to open gate.  Ran outside, no truck.  Drove to the gate, no one there.  Finally spoke to a human, and I apologize, I was upset.  Almost a week, no one but I can get another appt.  That was the final straw.  Been with them all these years and no service.  I told them to turn everything off but my tv’s still don’t work because I tech has to come to do something to turn them on.  No tv, no WiFi, no nothing.  All these years and they don’t care about their customers.