Caller: Scam Robocall

Pre-recorded message saying "Telstra" will disconnect my internet & landline within 24 hours.
I decided to press 1 to speak to their operator as suggested, was told again that I would be disconnected. I suggested that he is actually a scam caller and asked if he was actually from Telstra he apologised and hung up.
When I phoned the number back straight away it said the number is disconnected