How to unlock my sim PUK

My sim puk number on this number 0810 779 7110

Pls what can you help me with I mistaken lock my sim and have lost the PUK pack

Hello, good day. I attempted to set a PIN on my SIM, but there was already one. When I tried entering the PIN I thought it was, my SIM got blocked, and now I need a PUK code...