Rule 63. Refunds shall be made to the 2 most recent customers who received service through the meter found to be registering inaccurately. In the case of a previous customer who is no longer a customer of the utility, a notice of the amount of the refund shall be mailed to his or her last known address and the utility shall, upon demand made within 3 months, refund the amount.
Mich. Admin. Code R. 460.2363