Welcome to the Community!
We're sorry about the disruption to your service. I checked your account using your community details to find out the reason for the service loss.
From what I gathered, there was an outage that was reported by NBNCo on April 2, 2019 at 9:36PM AEDT. It was declared as resolved today at 11:19AM AEDT.
Your service should be working at this point. I can see that your modem is already connected for 12 hours.
Let me know if you still need our assistance.