Male voice with ?South African accent or similar, saying "I want to kill you" amongst other things. Subsequent call from similar number, declined and voice message left with same voice and same threats.

Caller: (02) 9698 9843

This person called me and threatened me that i am corrupt when i asked he dropped the call and then i tried calling again person never picked the call or the call was unreachable.

Two phone calls from this number, I answered the second. Male voice - hard to tell where from, did not sound Australian. He said "Hello?" repeatedly when I said "Hello", and he didn't give any further information when I stayed silent.
I blocked the number and he attempted to call 4 more times within the next 2 minutes.