It's a scam, they want all your personal information before they'll even tell you what the company is about and/or does, and they want a payment before you can receive the money owed to you.

If you want to check if the gvt owes you any money simply check the au.gov site.

Received the call from a robot, repeating a reference number to call back with, advised CCS. Called the number back and spoke with a Leane, she advised their name is Commercial Credit Services, they were chasing an outstanding amount to Fairfax media. I asked her for the invoice number, she didn't have it to supply to me. I told her, thank you I'll follow up with Fairfax Media. She asked if I would call her back, I said no I'll speak directly to them about it.

I called back number (02) 8039 4434 spoke to a woman who said company name is commercial credit services

Scam scam

??

I called back number (02) 8039 4434 spoke to a woman who said company name is Commercial Credit Services a debt collection company.