You chose a username when you first signed up for HDC.

If you are logged in to your HDC account, you can check your username by navigating to the profile settings. First, click the arrow next to your name in the top right corner of any screen within your account:

Then click VIEW PROFILE and it will show you a profile overview that lists your username:

Please contact our Support Team if you've forgotten and/or would like to change your username. 

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