I have received a call from this number twice in the last week. I missed the call both times. I tried calling the number but I keep getting a message saying something about Oceana Customer Interactive Services. I am with the Optus network.http://www.ocis.com.au/  ???

i just got a call from this number 5 mins ago, i answered said hello a few times and there was no reply from the other end they left the line open for about 10secs before they hung up then i googled it.

oh i just received a call few minutes ago, also from an indian lady... just the same as Penny's case
but the appeared number was (02) 8114 3800, not (03) 9838 2018

Got a call from this number, asking to speak to my father - it also referred to him by his shortened name, however the phone is registered under his name.

Same deal as everyone above I think. I've received calls over the last three days from the (03) 9838 2018 number as well as (02) 8114 3800.

I've answered once and it was a man with an Indian accent (always suss from an unknown number) offering me a better deal on my Optus prepaid. I didn't hear all the details cause I was chasing my dog who got out while I was trying to figure out what he was offering, but it was something like $19 a month and $50 worth of extras. Which is stupid cause I get more value from a $30 recharge anyway. He said I'd been selected by Optus for a new prepaid plan. Whatever...I just hope they stop calling.

I have also missed a call from this number tried to ring it back from my office work number but it had an engaged signal. Tried a few times but got the engaged signal.