Caller: David

Claims to be from Microsoft... He cleaned up my computer charged $299 US .. the following day the computer wouldn't work had to pay to get that fix. Lucky I paid by Paypal...so i got my money back... Now I'm getting harassing calls from him saying I owe him 200 dollars for the work he did after the refund. Says he is from Microsoft but he has a gmail account once payment has been made. He has threatened me that if the debt isn't paid debt collector. Hasn't given me a legit tax invoice Going to waiting for an Australian Tax invoice with an ABN and then ill probably pay him.

Got same call sounds a bit sus

Definitely a scam.
Claims to be from Telstra and wants you to close down your internet, then open it and go to a specific url to download something that will clean your system of viruses.
I called Tesltra and they said the number was not one of theirs

Got two calls from this number said that they are calling from Telstra and my internet from Telstra is hacked , in fact I do not have an internet connection from Telstra at all

claims to be telstra