Worst experience; getting a new provider

I was trying to add a 9th line to my account.  I have been a customer for years but yet they cant verify my account.  We spent hours on the phone with xfinity and then we were sent to the Danbury location.  They kept saying we have never seen anything like this.  Two different managers called some back office for help and they were totally useless (at least the XFINITY reps knew how I felt dealing with them).  Two more hours waisted, I literally cant give them my business.  I won't waste any more time with them; time to get a new provider who would appreciate a customer with 9 mobile lines, home internet and phone.  Just terrible.