Alex X.

After more than a week with no Internet and three failed NBN inspections, we had to cancel our NBN contract with TPG. There was no other option as both my wife and I work from home and we were being seriously affected by this ongoing disruption. In addition, TPG has no 4G or 5G alternatives and we lost our trust in the NBN.

TPG only offered the distant option of a provisional 4G alternative once they realised our intention of cancelling the service was genuine. And even then, we would still have to wait for another week for the provisional service to be authorised by management, etc.
At no point was TPG concerned about how this disruption was affecting us and never offered quick delivery of the provisional 4G alternative or monetary compensation for the additional (and expensive) mobile data we had to purchase to make up for the lost internet connection.

TPG's only answer was a hefty cancellation fee and no acknowledgement of any responsibility. My recommendation: Do not join TPG. If you want the NBN, join Optus which offers full 4G backup in case the unreliable NBN fails. Glad to leave you behind, TPG.