Some Lakeland Electric customers owe extra money because of a mistake.

According to our partners at the Ledger, the utility under-billed 2,113 customers. The mistake affects people in the Lake Miriam area, who get sewer services through Polk County.

The utility didn't add in a base fee increase almost a year ago.

The Ledger reports that no customer will owe more than $20.

If this affects you and you have questions, call Lakeland Electric's customer service department at 863-834-9535.