Why is it so hard to schedule a technician to fix Internet issues with cable box

Why is it so hard to schedule a XFINITY/Comcast technician in a timely manor. When you have no internet, for no reason and you work from home. How do I speak to XFINITY/comcast technicians that are in my area? 
I’ve called all the 800#, and tired direct messaging. But I get a support team that does not know anything about scheduling technicians/ repair men, etc.