The Minnesota Public Utilities Commission has a Consumer Affairs Office to answer inquiries and assist customers and utilities in addressing informal complaints through correspondence, mediation, or arbitration. (Minn. Rules 7829.1600) Customers with complaints or inquiries can fill out an online complaint form or call CAO at 651-296-0406 or 1-800-657-3782. More information on the Consumer Affairs Office.
In addition to the informal complaint process, the Minnesota Public Utilities Commission has a formal complaint process, which involves a determination by the full Commission. Details on that process are described in Minnesota Rules 7829.1700 to 7829.1900: