We responded to your initial post located here
We have identified that the issue is with the network controlled by the NBN Co. This unfortunately means the only NBN Co. Technicians have the authority to fix this fault.
Our Engineers dispatched an NBN technician who replaced the DPU unit and the service has been restored. At the moment it is connected for 1d 23h 36m.
One of our Engineers tried to contact you today for service confirmation but unreachable they also sent you an email and you may contact them via return mail.