1. Go to https://www.nmi.com/ and click the red Merchant Login button in the upper right corner.
2. Enter your current username and password (note: if you're forgotten your username and/or password, please email firstname.lastname@example.org) and click Login.
3. Click My Settings on the top right, then select Account from the dropdown menu that appears.
4. Select the account you want to modify from the User Account table by clicking the blue link in the Username column.
5. Update your information, then click Save at the bottom.