First, make contact with your local provider.
The next stop is the Telecommunications Industry Ombudsman, a fast, free and fair dispute resolution service for small business and residential customers who have a complaint about their telephoe or internet services.
Telecommunications Industry Ombudsman
1800 062 058
Last port of call is your local Federal Member, Rowan Ramsey.
Rowan Ramsey MP
Federal Member for Grey
1300 301 742