Did not answer and then checked here.

I have decided some time ago to only answer if I know the number, that is the caller.

Checking the number here provides evidence that by not anwering I am not missing out on anything that might be of some use.

They said they were from Telstra

Knew my name. Said it was the fraud services from Visa and Mastercard. Originally said he wanted to talk about purchased I had made using my Visa. I had said I didn’t have one, he then said it must be the Mastercard. When I said they were two different companies, he hung up.

Said they were from Mastercard

Caller: Harden, NSW

Bad English - wanting to know if I had spent $700 at Amazon on Visa.

Get a life

Caller: Supposedly Telstra Accounts

Scam saying telstra accounts i dont use them. Blocked number

This is a marketing number they also use the following number (02) 5321 2519 - have now blocked the calls

Caller: Was energy saver in Melbourne

They want to change your power and call using different phone numbers