Welcome to the Community!
We're sorry to learn about your experience; certainly not the type we aim to provide.
I've managed to locate your account and it shows that the installation is in progress. I can reach out again to our Engineering team whilst waiting for the NBN service to get activated. I understand that technician visits has occurred however the service interruption is still ongoing.
I'll have an Engineer to contact you and provide options regarding the service.
We'll have one of our Engineers contacts you within the day and advised them in regards to your Billing Concern. We'd like to set your expectation that any billing adjustment and compensation will be subject to approval and investigation once the technical issue is resolved.
I have the exact same problem now - ADSL not working, TPG not interested at all in fixing it, only want to sell us NBN. They have told us that our ADSL cannot be fixed they can do no more, but we still have to give them 30 days written notice to cancel it and continue to pay.....
We've seen that you have been in contact with one of our Engineers earlier today and provided the update related to the escalated fault. Let us know should you require further assistance.
We have responded to your initial post located here.
The 30 days notice is required to be provided when cancelling your internet service, this is discussed during registration and is also covered in our terms and conditions.