Unlock nokia 6230, please help?

Hi everyone!
Can anyone help me unlock my nokia 6230?

IMEI: 354327002227501
country: Australia
network: OPTUS

thanks in advance!

Happy Australia day all 26/1/08

 

#pw+139354753715065+7#

 

Hey SalMal thanks for the quick reply. But I got a code error. This is only the first code I have tried.

Thanks.

 

#pw+139084753715065+7# Once only

 

Thanks for your help, but I got a code error again So thats 2 attempts now. I've got between 3 to 5 before it hard locks?

Thanks again.

 

This is the last one.

#pw+353026676131733+5# Once only

 

Thanks for your help SamMal but got another code error. Will try to get another phone.

Cheers