You can easily find your One Balance account's information - including your Account ID, username, password, and Security Question Answer - within your ONE BALANCE AND CARRIERS settings.
You will see your One Balance account overview.
Locate the Manage Passwords link and click on it.
In this case, you will see five things: your Stamps Username, Account ID, Password, and your Security Answers.
You can now use this information to access your Stamps account information on their login page using: