to find your PUK:
Go to the O2 website. then go to help. after that click on the bit that says unblock my mobile. Go to the bottom of the pageand type your mobile no. where it says. Then it will send you your PUK code. Hope this helps!!
You could call your service provider if the website didnt work , Hope this helps, Good luck !!
I went to the Website and i put in my phone number but it keeps asking me that my phone number is ment to have 11 didgets and my mobile number only has 10 is this right or what ??