To update your contact information with Niagara Mohawk Power Corporation, it is generally advised to do so through their official website. Customers typically have the option to log in to their account, where they can manage personal details, including updating phone numbers, email addresses, and other contact information.
If you prefer to handle this matter over the phone, there may be a customer service number available on their website, which can provide direct assistance. It is important to ensure that your information is current in order to receive timely notifications regarding account updates, outage alerts, or important service information.
For specific instructions on managing your account and updating contact information, visiting the Niagara Mohawk website may yield the most accurate and up-to-date resources.