Contact your mobile network, the PUK code is on the sim not on the phone, so contact the network your with and they should be able to provide the code for you, do not enter the wrong number too many times as this will completely block your sim.
A lot of networks now have an automated phone system or online service to just automatically give you the PUK code.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix mobile phones.