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 Premise (NBN FTTP) Setup Guide
In your case, there's an equipment serial number mismatch and we've lodged the case to NBN Co for further investigation. An assigned Engineer will be in touch with you via SMS or phone call within 24 to 48 hours once an update becomes available.