Here is a range of resources that might help you. It covers a range of topics including choosing an internet and phone plan. The ACCAN website offers some sound advice and useful links if you are struggling financially to pay your bills.
The Telecommunications Industry Ombudsman (TIO) is a service that is free where they provide a fair and independent resolution service for a range of people that were unable to resolve their complaint with a phone or internet service provider.
The Internet Resources link has a range of resources from the Indigenous Governance Toolkit, children’s eSafety commission and the Telstra Indigenous hotline that might help you on your online journey.