Received a call from 'them' last night. Left some garbled incomprehensible message on my voicemail. They tried again but from a different number (02) 8956 7000.

tell them to stop call and when I answer they are not there.

I just answered a call from this number (02) 8956 0300....offering me free $30 credit because my sim is about to 'expire'....all they wanted was my date of birth - I didn't give it to them of course, so I got nothing but rudeness and an abrupt reminder to recharge my account. I believe it is a scam...anyway I REFUSE to ever give out info over the phone..even for $30 free credit.

i have received two calls from them todaywho the hell is this?

i dialed the number also, and it too was busy

I received a number of calls from this number, each time no message was left.  When I tried to return the call the number came up as disconnected.  I checked out the umber on the Internet and discovered it was a scam.  When hey called back next they asked for me by name and I said that it was not that persons phone.  They've not called back.  Scammers

Received 3 calls from this number, 1 on each of the last 3 days and have not answered any of them. Suspect it to be Optus telemarketing. I'll continue to let them ring out...

They tried to call me 30min ago, didn't hear so didn't answer. No message left. If they call I'll answer then interrogate them, maybe ask for their ABN etc