Missouri Code of State Regulations
Title 20 - DEPARTMENT OF COMMERCE AND INSURANCE
Division 4240 - Public Service Commission
Chapter 13 - Service and Billing Practices for Residential Customers of Electric, Gas, Sewer, and Water Utilities
Section 20 CSR 4240-13.045 - Disputes

(1) A customer shall advise a utility that all or part of a charge is in dispute by written notice, in person, or by a telephone message directed to the utility during normal business hours. A dispute must be registered with the utility at least twenty-four (24) hours prior to the date of proposed discontinuance for a customer to avoid discontinuance of service as provided by these rules.

(2) When an applicant or customer advises a utility that all or part of a charge is in dispute, the utility shall record the date, time, and place the contact is made; investigate the contact promptly and thoroughly; and attempt to resolve the dispute in a manner satisfactory to both parties.

(3) Failure of a customer to participate with the utility in efforts to resolve an inquiry which has the effect of placing charges in dispute shall constitute a waiver of the customer's right to continuance of service and the utility, not less than five (5) days after provision of the notification required by section (9), may proceed to discontinue service unless the customer files an informal complaint with the commission within the five (5)-day period.

(4) Customers presenting frivolous disputes shall have no right to continued service. A utility, before proceeding to discontinue the service of a customer presenting a dispute it deems frivolous, shall advise the consumer services department of the commission of the circumstances. The consumer services department shall attempt to contact the customer by telephone and ascertain the basis of the dispute. If telephone contact cannot be made, the consumer services department shall send the customer a notice by first class mail stating that service may be discontinued by the utility unless the customer contacts the consumer services department within twenty-four (24) hours. If it appears to the consumer services department that the dispute is frivolous or if contact with the customer cannot be made within seventy-two (72) hours following the utility's report, the utility shall be advised that it may proceed to discontinue service. If it appears that the dispute is not frivolous, service shall not be discontinued until ten (10) days after the notice required by 4 CSR 240-13.050(5) has been sent to the customer by the utility. The customer shall retain the right to make an informal complaint to the commission.

(5) If a customer disputes a charge, s/he shall pay to the utility an amount equal to that part of the charge not in dispute. The amount not in dispute shall be mutually determined by the parties. The parties shall consider the customer's prior consumption history, weather variations, the nature of the dispute, and any other pertinent factors in determining the amount not in dispute.

(6) If the parties are unable to mutually determine the amount not in dispute, the customer shall pay to the utility the lesser of an amount not to exceed fifty percent (50%) of the charge in dispute or an amount based on usage during a like period under similar conditions which shall represent the amount not in dispute.

(7) Failure of the customer to pay to the utility the amount not in dispute within four (4) working days from the date that the dispute is registered or by the delinquent date of the disputed bill, whichever is later, shall constitute a waiver of the customer's right to continuance of service and the utility may then proceed to discontinue service as provided in this rule.

(8) If the dispute is ultimately resolved in favor of the customer in whole or in part, any excess moneys paid by the customer shall be refunded promptly.

(9) If the utility does not resolve the dispute to the satisfaction of the customer, the utility representative shall notify the customer that each party has a right to make an informal complaint to the commission, and of the address and telephone number where the customer may file an informal complaint with the commission. If a customer files an informal complaint with the commission prior to advising the company that all or a portion of a bill is in dispute, the commission shall notify the customer of the payment required by sections (5) or (6) of this rule.

(10) A utility is not required to comply with these rules prior to the discontinuance of service where the dispute registered with the utility involves the same customer, the same facts, and the same question regarding the validity of a charge as those involved in a prior informal or formal complaint filed by the customer and resolved in favor of the utility.