3 DAYS NO INTERNET AND NO EARLIER APPTS AVAILABLE AND NO CALL BACK

Why is there no agent that you can speak with but an automated chatline that goes round and round in circles.  when you do get help, they give you the same canned i will send a signal, plug and unplug the modem.  i will call you back in an hour.  i have been without internet for 3 days and i have to wait over 3 days to get an appt for someone to come and fix my modem b/c it has been deemed that sending a refresh signal will not work and i need a technician to come out but xfinity does not have enough technicians to support all of the customers that it has agreed to provide service to.  I pay over $350 a month for cable and internet and subscription services.  None of which i can use now and i run a business and cannot use a printer or my computer or watch tv or use my phone without wifi.  I ask to speak to a manager and i am told that there is nothing xfinity can do and that they feel my pain.  How can a company get away with not answering customer calls and then making the customers wait over 3 days for a service appointment?  I hear no credit against my account for the inconvenience.  i don't hear xfinity saying that they have technicians working round the clock to ensure that all the customers are taken care of and they will do whatever they can to ensure that i am taking care of.  i would like to know the email of whom i can email to file a formal complaint besides the FCC and BBB which i plan to be filling grievances against xfinity.