Same thing call is disconnected when I call back

I have received 4 missed calls from this number is it optus or a debt collection Agency? not sure can anyone tell me. not good

Getting the disconnected message as well. Oh well they may as well give up calling me through the day as they tend to call either when I am attending lectures or tutes, or at work. They also call at the busiest time in my house...meal and bedtime for the kids and I am not answering anything during that time

I got a missed call from this number too and when I tried calling it back it says it is a disconected number. If it is optus we should all boycott them they are a disreputable company anyways.

as soon as i left a message on here my phone rang with this number again i answered it and they said they were from Optus call Centre. i asked how when i tried calling number back i couldnt get through it said because its the call centre they are using the computer to call you, weird.

Who is this person that keeps calling me

I also live in melbourne and have received 3 missed calls from this number. I haven't answered any of the calls, and don't plan to. If it was important, they'd leave a voice msg.

Just rang me now, number says its disconnected when i tried to ring back.

Called me two days in a row now. Anyone know what it is?

this is obviously a dodgy number - just missed a call from this number and when i called back, you you guessed it - the message says the number is disconnected

Hi, Ummm I'm in melbourne and get calls from this number too... They are a debt collection agency based in NSW... If you don't answer these calls our credit ratings will be affected...
I FINALLY ANSWERED ONE so I know... BUT WHY IS THE NUMBER DISCONNECTED WHEN WE CALL IT BACK.. DODGY

I answered and who ever they were hung up.

Why do I keep getting calls from nsw I live in Melbourne and don't know anyone with a 02 number