City of St. Charles issued the following announcement on May 9.

Residents are getting phone calls with the caller ID displaying ComEd. An automated message says you have an hour to pay your bill or have your electricity turned off. As a reminder, the City of St. Charles operates its own electric utility services. ComEd does not provide electric services to our residents. Also, the City will not call to demand immediate payment. Please help spread the word.

Original source can be found here.

Source: City of St. Charles