Mich. Admin. Code R. 460.126
Rule 26. A utility may include charges for unregulated non-energy services, such as appliance repair or appliance protection programs, together with charges for natural gas and electric service on the same monthly bill if the charges for the unregulated non-energy services are designated clearly and separately from the charges for the natural gas or electric service and it is noted that it is an unregulated service. Failure to pay for unregulated non-energy service charges may result in the termination of that service but not the shut off of the natural gas or electric service. If partial payment is made, the utility shall first credit payment to the balance outstanding for natural gas or electric service pursuant to the provisions of R 460.123(7) and R 460.123(8) where applicable.
Mich. Admin. Code R. 460.126