I got a prepaid sim from O2 store. I did not register the number online or on app. Now when I changed the handset for the sim it asked me for PIN which I did not have.i did 3 wrong attempts and now it is asking for PUK code. Please help me. How can I get PUK code. I did not have access to online too.
Edit by o2_Katja: Moved to our english community