Hello,
You can take to try to resolve the issue:
Contact NBN Co. Directly: Reach out to NBN Co. customer service and explain the situation. Sometimes, escalating the issue can help expedite the process.
Contact Your Internet Service Provider (ISP): Get in touch with your ISP's customer support. They can often help push for a quicker resolution and ensure the necessary steps are being taken.
File a Complaint: If you're not getting anywhere with customer service, consider filing a formal complaint with the Telecommunications Industry Ombudsman (TIO) in Australia. They can help mediate and resolve issues with telecom providers.
Check Alternative Options: In the meantime, you might want to explore alternative internet options, such as mobile broadband or a temporary 4G/5G hotspot, to tide you over until the NBN installation is complete.
Best Regard,
Amy