My username got suspended. What do I do?

If your username has been suspended, email services [at] nationchat.org. Provide your username, email address, and verification question/answer, and ask for further information.

While it usually takes only 24 hours or so to receive a response, you may have to wait as long as 3-5 days for an answer.
You can join #help the official channel of username registration help, for more information.