Customer service is so horrible I've cancelled my service

I wasted 3 hours of my life with you guys.  Started when my cable coming into the house rusted and broke.  Try to contact support, and I began to wander aimlessly within the phone system (30 minutes) never able to speak with someone.  It finally routes me into your chat assistant - wow - worst experience I can imagine.  At one point it forced me to sit and wait for 10 minutes for my router to reboot (recall - my wire is broken outside the house) - during which time the chat window timed out and started me back from scratch (and another sit and wait for 10 minutes).  Almost as bad - made me choose my equipment from a list - but - of course - the router doesn't have any manufacturer markings on it - so picked the wrong one the first time, 30 minutes wasted, looped around, picked the right one - but by now it has added non-existent equipment to my service.  Finally, 2 hours in, I get to schedule service and chat with a human.  Explain to them that I'm not here on the weekdays, so I cannot be present when technician arrives - but he just needs to fix the cable outside, also, request credit for the week that my service has been dead.  I also ask for outage credit for the week my cable has been broken.  Fast forward 3 days and technician comes to the house, knocks on the door and leaves.  So I call and get to sales (the only place where a person exists) and yell at them about my wasted time.  They let me know the only way to talk to someone is to choose to 'cancel my service'.  This I do, and the lady is relatively helpful - and can reduce my bill by $35 a month.  This pisses me off too, since why would they be charging me so much if there was a better service for less money.  Anyway, decide then an there to cancel.  Now, to top it all off, I have to do my 5 hour drive to get back to the house and take my equipment in to the store.  I am the 3rd person in line in the morning when they open.  45 minutes of standing and waiting as they set up phones for the 2 people in front of me.  At the 25 minute mark I asked one of the xfinity people if they could turn in my equipment while they are waiting 10 minutes for the phone to provision.  Got a sarcastic response and attitude (I suppose they could see the look on my face by this time).  And, when I finally spent the 3 minutes it took to return the equipment - my nightmarish interaction with the xfinity assistant had added 2 pieces of equipment to my account that I never had.  Now, today, xfinity has the odacity to bill me for the fist part of July (when I had no service).  The credit I was suppose to get is nowhere to be found.  Just horrible, worst support I've encountered in my 62 years.