Where do I find the PIN and PUK code of my SIM card?

You can find the link to the PUK code in your SIM card settings.

That page also has de standard PIN of your SIM card.

If you have entered the PIN code incorrectly three times, your device will require your PUK code. You can now use the puk1 code. After entering this PUK code you choose a new PIN code.