Said they were from Westpac, I asked for a number to call back on, and they gave this number (I havnt called back).
They asked me to call back and select Option 2, then option 1, then option 5.

Caller: Zia from Westpac Bank????

Zia gave this number in order to call back. Said she was offshore and I wouldn't necessarily talk to her again. She said when calling back to Press 1 and then Press 2. She did know the first name and surname of who she was looking for. The call has not been returned.

Caller: they claimed they were from Westpac

A got a call from "Westpac Customer Assistance", i asked for their number and said i would call them back. When I asked what it was in relation to they said they couldn't tell me. I hung up

I received a phone call from a Private number, when I answered I told them my name. Then they asked for my first & last name. I didn't give it to them, and asked them why are they calling me.
They said, they were from Westpac bank, I said, the bank does not call me. I asked, them for their ID number & phone number they gave me this number.
I contacted my bank.
The bank said, it's not from Westpac, don't call the numbers it's a scan & they will get all your personal information.