To update account information with Memphis Light, Gas and Water, customers can typically do so by logging into their online account on the official Memphis Light, Gas and Water website. After logging in, users may find options to edit personal details such as their address, contact number, and other relevant information. Additionally, if a customer prefers a more personal approach, they can reach out to customer service for assistance. It is important to note that for security reasons, customers may be required to provide verification before any changes can be processed. To ensure one has the most accurate and current information regarding these processes, it is recommended to visit the official website of Memphis Light, Gas and Water, where detailed procedures and specific contact information are available.