Rule 25-30.335, requires bill statements to prominently show the word “Estimated” on the bill. The utility is obligated to timely correct problems within the utility’s control causing the need to estimate bills. The utility must provide the customer with contact information in certain circumstances. The utility must maintain records, for a minimum of two years, detailing the number, frequency and causes of estimated bills. Rule 25-30.350, is renamed to Underbilling and Overbilling. A new process is set out for both underbillings and overbillings. Rule 25-30.351, describes a process for billing for unauthorized use.