Your PUK code comes in handy when your handset is blocked (for any reason). The PUK code typically counts more digits than the PIN code.
Looking for your PIN code? There are 2 ways to find it:
Follow the steps in the settings of your handset to set a new PIN code.
Tip: Avoid choosing codes that are easy to guess, such as '1111' or your year of birth. This way your handset will be more secure.
Remove your SIM card from your handset for a moment and then put it back in it.
Perhaps you already entered an incorrect PUK code 10 times? Then you will get the message 'SIM card rejected'. In this case, it means that we have locked your SIM card in order to protect your handset and your personal data.