Repeated calls asking to join a conference call.

18th Mar, I also have 2 missed calls from (02) 8999 3100 at 1759 &1240.
I called this number, automated voice guidance asked me to enter my conference code.

They didn't leave me any msg.

18th Mar, I also have 2 missed calls from (02) 8999 3100 at 1759 &1240.I called this number, automated voice guidance asked me to enter my conference code.They didn't leave me any msg.

continually calls my mobile - hangs up when I answer

Yep had the same spammer call up. Did not answer on my mobile however, when I called it on my landline. It stated that I should enter a conference pin number