Follow-up
Check my case
Enter the code and password you were given when you submitted your report. No email or user account is needed.
Have you lost either of them?
The password can be replaced. Contact the channel’s System Officer by whatever means you have available (in person, or by requesting a meeting from the channel page) and they can issue you a new one. You will first be asked things that only the person who submitted the report can know: what you reported, when, and where it happened. This is not mistrust: it is the only thing that prevents someone else from impersonating you and reading your case. If you left an email address for notifications, it will be sent there, which is safer.
The code cannot. It can be neither replaced nor recovered: it is what identifies the case. If you have lost it and your report was anonymous, submit a new one explaining that it adds to an earlier report.