Welcome to the community!
Thanks for raising this to us. Our customers can select two options in upgrading ADSL2+ service to NBN service.
Since you already paid for the $99.95 set up fee for your ADSL2+ service we will raise this to our Account Specialists Team to have this checked and see what we can do.
Unfortunately, you have decided to discontinue your service with us, we tried to use your Community Details to pull up the account unfortunately it does not show any matching records.
Let us know should you require further assistance.
We regret to know that, @Wpzt9.
Should there be anything we can assist you during your transition feel free to let us know and PM us your account details (Username/Customer ID together with the complete address on file).
In case you need a reference:
How do I private message (PM) in the community