WEB: To recover your username, visit www.westernunion.com and click Log In.  Click the link called Forgot username. Enter the email address associated with your Western Union online profile, then the security code, and click Continue. Enter the answer to your security question and click Continue.

SMARTPHONE: To recover your username, tap My Profile, then Forgot your Username. Enter the
email address associated with your Western Union online profile, and tap Get Security Question. Enter the answer, then tap Get Username.