Sounded like a Telstra scam

Automated scam

Caller: Pretended to be Amazon Prime renewal

scam

Answered call and all I received was static.

Called to be from visa Mastercard
Calls multiple times a week

Caller: Lady

Claimed to be from Ebay and said that we had a $600 unauthorised purchase on our card.

Caller: Scammer

Indian woman claiming to be from telstra, calling about my internet line. It was my work phone and I am WFH, my home internet is not with telstra. I hung up.

They claimed they were from Vodafone and kept asking I speaks Chinese or not.

Caller: Said they were from Mastercard and Visa

They start with automated message stating "Your Visa/Mastercard has had a request for payment of $1000.00 for online shopping, press one to cancel payment or two to confirm".. I pressed one. They answer asking "What can I help you with". I state, you called me so what can I help you SCAMMERS with and they hang up.
They will try anything and everything hoping to get someone who will comply.. Not this little black duck...

Caller: (08) 6383 6738

Missed the call called them back automated message said due to technical difficulties this number is not contactable.

called with usual delayed answering, claimed to be NBN...scam so hung up

claimed to be calling re compromised NBN provider, asked where he was calling from , melb, wanted me to confirm my computer ID for him to check from his end

They claimed to be calling about potential card fraud, in relation to a payment that had apparently been authorised from my account to someone in California. It was obviously an attempted scam. I asked what account the payment came from and they went silent and hung up.

i answered, had the auto call delay, so i answered with

"what company are you calling from and dont give me the 'on behalf of' crap"

they hung up

Caller: Pretended to be NBN

Sounds like a scam