Xfinity cut off my centurylink internet

Some xfinity trucks were working on lines across the street from me and my centurylink internet went down while they were working. I figure it would come back when they were done but they left and now I have no internet. Centurylink can't send a tech out until next week. How can I get xfinity to come look at what they did if I don't have xfinity services?