[bold]_I don't know my registered email address.

Please check the email addresses used to register your viviON ID and viviON Blue accounts. 

For your viviON ID, the registered email address is the one to which we sent the “viviON ID Registration Completion Email” when you signed up. 
Please check your inbox. 

For viviON Blue, you can check your registered email address under “Registration Information” on your My Page.
If both email addresses are the same, you do not need to take any action. 

If they are different, please make them match by Monday, September 7th.