This is an easy fix, and built right into the JSE.
1. Go to the JSE website at https://jse.vic.gov.au/
2. Click on 'Forgot log in details'
The form will change:
3. Enter your email address in the space provided
4 Click on Submit.
If all goes well, you will receive an email in a minute or less with your username in it, and a link to set a new password. Click the link and you're back in!
If you do not receive an email, perform a search in Outlook for 'email@example.com' or check your junk folder.
If you need any further assistance please contact our friendly support team: firstname.lastname@example.org
Handy tips for the future
To give yourself another way into the JSE, consider adding a personal email address to your JSE account. You can then use that to regain access to your JSE account if your main VPS address has changed. Don't forget to update your VPS address once you're back in again.