Nokia 6680 Unlocking?

[philios55]

I just bought a nokia 6680 which is great mobile, but the problem is that
my network(3) has locked this mobile for use with the 3 sim card only.
I made a lot of searches in the internet and ask the local unlocking mobile shop if they can unlock my mobile but until now nothing!!! :x

Any ideas guys, what i have to do to unlock it!