Please my sim is locked how do I get my puk number to unlock it?

My phone went blank so I typed the wrong sim lock so they block it now I fixed the phone the sim is asking me for puk number 07033805501

I am unable to use my sim because I have been locked out. I changed my sim pin and imputed a new one but it didn’t work after I switched off my phone and back on. Now I need my...

My mtn line is blocked I need PUK to unlock it my number is 08031901853