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Using your details here in the community, we're able to check the notes pertaining to your call regarding the same concern yesterday.
From what I gathered, a Provisioning Case Manager has raised this to NBNCo to set an appointment for an NBN technician to re-attend and complete the installation. However, NBNCo detected internet activity already. I ran tests as well and we are getting the same results.
Can we clarify if the NBN box is already installed at your premises?
This issue has now been rectified. I retrieved the NBN modem from where it was left in error yesterday and I plugged it into the (Foxtel) hfc outlet (as per the instructions in the box) and it connected straight away, plugged in the tpg router and it connected to the internet with no issues. Problem solved !!! Just waiting on the VOIP phone to become active now. I'm getting great speeds atm too, so this is the icing on the cake.
Very happy 15+ year customer.