Why does it take four days to get an appointment for a total outage

Yesterday we had a storm. The power did not go off. My current Technicolor modem is offline. I cannot get it to reboot. It basically is in the flashing yellow light status. It appears as if there is an issue with the modem. I have to. I called in for a consultation/appointment. The appointment is 4 days out. I have been a customer for 35 years. And I find this to be completely unsatisfactory.