Thanks. I followed your advice after months of ignoring the calls. Seems to be OK so far....

It's Oceanana Marketing who make sales calls on behalf of Optus.Call them back and you can be removed from their list.

It's Oceanana Marketing who make sales calls on behalf of Optus.
Call them back and you can be removed from their list.

They just called me.

They called me too.

I had several missed calls so I rang the number back. A automated answering machine answered straight away. They call themselves Oceanana marketing and it gave me the option of removing my number from their call list- which I did. Problemo solved!! :)