When I check the installation tracker, I see
"Your installation is currently in progress.
A technician has been scheduled to complete the installation on Tuesday, 18 February.
You don’t need to be home for the appointment"
However, we are nearly to the end of business on Wed 19 February.
For new services, we recommend customers to check first if their service has been installed and activated.
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 and we have created setup guides for all technologies that TPG use : New Connection Setup Help
In your case, the service has been installed, but we have identified a line fault, thus a Telstra technician has been booked to fix your specific concern.