I called back number (02) 8027 2924 reached voice mail but did not say from what company.

Caller: (02) 8027 2924

Called saying she was from NAB. We do thank with them!

Never leaves a message. Calls several times each time. Doesn't say who they are or leaves any message. When I called the number there's a voice message but it seems to have dropped off the start where it says who they are and then it clicks off when it finishes.

Another scammer pretending to be of someone authority ( when u calm back no one answers or gives any legitimate details)

Caller: No idea

They don’t communicate effectively - it’s a call centre of heavy breathing & a foreign language

Caller: Numerous Calls

Unsure who they are calling 3-4 times a week? i have had the phone number for less than 3 weeks

Called back number - Citi bank