Welcome to TPG Community,
Could you PM (Private message) me your customer ID, username, service address or mobile number so I can check the status here.
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The status of your installation was that there should have been an NCD already onsite from a previous NBN installation.
Often when tenants move out of an apartment they take this device with them when they should not.
I have escalated this to TPG NBN Installations and they will advise you shortly.