Bill extension?

Our Xfinity WiFi bill was more than anticipated this month and we will not likely be able to pay on our due date. I am unemployed because of COVID-19 pandemic, but cannot be without Internet because it will prevent me will certifying for Unemployment Insurance. How can I get an extension? Please help ASAP, my income for all bills including Xfinity WiFi depends on being able to access and have interrupted Internet service! Thank you.