He called on a blocked number at first offering me a free phone which I then replied, "I'm good thanks" and hung up. He then proceeded to call me using a mobile number to ask me the same thing which I then just hung up. He then rang a third time, to which I let it ring out and he left a voice message that sent as a text saying "you're a f**king b*tch".

This guy just called me pretend he knows my plan which is incorrect. He called me with unknown number followed by this number.

Utter scam. Noisy call. Called several times asking me if I'm with a different phone company to what I am with. When I told them to not call back they got angry and continued calling asking why I hung up.

They called me off this number and I answered but it was so noisy so I hung up. Within seconds a blocked number called me and I answered again and it was the same lady. When I questioned her she quickly said sorry wrong number and hung up. Total Scam!

same as the comments below, however I managed to keep him on the phone long enough to really piss him off :) hopefully I will not be called back :)

Yeah! Same thing, so I put the number in my phone contacts under "Scam Call Hang Up" so that I'd know not to answer.

Tele marketer that pretended to know my plan and other info, told me I've won a phone. After a minute i told her I'm not interested and was going to hang up. I hung up and she called back cranky wanting to know why I hung up, telling me its for my benifit ect. I don't know how to report these numbers.

Keeps calling asking me if I'm prepaid Optus it's a scam I'm not sure why this has not been investigated

Repeatedly calling me and telling me that my "number has been selected for a brand new android phone ..." My mum tried calling the number from our landline and got a recording of the "leave a short 10 second message which will be sent as a text".

I received this call but didn't answer as I'm overseas. glad I didn't answer after seeing these posts, thanks !

Another claiming to be from Optus but asking for details of my plan, when questioned closely they hung up. Very noisey, sounds like an Indian call centre.

Same thing happened to me. The person has been ringing me for a month but always hangs up when I pick up. Really suspicious. Don't give any personal info on the phone.

Very noisy call with a guy claiming to be from Optus. Trying to say I am a valued customer and happy with how much I spend on credit a month... I'm on a plan. I end up hanging up and this number has tried again but was silent and hung up! :/