I called back number (02) 8378 7942 rang once then gets disconnected automatically.

my husband answered (02) 8378 7925. someone from Orix claiming i had left my details saying i was interested in crypt currency.
this is the second lot of phone calls- had numerous ones from 02 7202.... numbers.
ignoring & blocking them doesn't help and neither does answering them

Constantly getting calls from 02 8####
Have blocked all these nos.that I am getting but they must heaps of them.
Who do we report them to,and will anyone do anything

Caller: ‭(02) 8378 7942‬

This and other numbers from the same area code starting with 8378 call pretending to be from some investment company. Once they confirm your first name, they hang up. From then on the moderfu##ers keep ringing using different variations of that number. They are effing relentless. Best way of dealing with them is by not answering the call.

Caller: Financial sales belligerent

They continue to call even after the same person has been told please do not ever call again and remove me from your list. The guys name was “Andy”

Caller: No idea, no one spoke

They called, I answered and they hung up. I called, constantly busy. Weird...