For customers who would like to check the status of their service installation/activation, we have created this community article, which contains a video on How to track your TPG service installation.
We also send an email notification once the service is activated. If you have received this email and the service is still not working, we recommend to check if the equipment is properly set up by going to this link : NBN Fibre to the Curb (FTTC) Setup Guide
In your case, our NBN Provisioning team has lodged a case to NBN Co and booked a technician that will check resolve the issue with your service. Further updates will be given by your case manager once available.