Before attempting the troubleshooting steps, we recommend that you do the following below.
If you are still unable to connect to the Internet, you can proceed with the troubleshooting steps indicated on this link: https://www.tpg.com.au/support/problems_connect_internet.php
In your case, our Engineering team lodged a fault with our wholesaler (Telstra) and they've booked a technician to resolve the fault within the copper network on or before 2 April 2020. Also, your NBN installation is in progress. Further updates will be given by your case manager once available.