It’s an old scheme. Someone calls and pretends to be from your local utility. You are informed you are behind on your bill and if you don’t pay immediately, service will be cut off.
If you fall for the ruse you immediately pull out your credit card and give them the billing information. Worse still, you might give them a way to access your bank account.
If you get one of these calls you should be highly suspicious.
Utility companies don’t normally call customers who are overdue – most communication is by mail. Someone who demands immediate payment over the phone is probably scamming you.