Welcome back!

You could just change it with your username by using your Community Hall points. here: https://www.dreamviews.com/market.php?do=item&id=13

If you buy a name change , please list your previous user name in your signature for 30 days in this format: "Known as [previous username]".
Violators might be automatically changed back to previous username without a point refund. All previous names need to be listed for 30 days, even if you made another name change before the 30 days are up.

~Lang.