My daughter has the same surname of mine (G), but on her birth certificate there is her bio father details. We never had contact with him since she was born. I have no idea where he lives. All I know is that after 1 month of dating him, I got pregnant, and he made it clear that he does not want nothing to do with me or the child. Now after 3 years, me and my current partner would like to get married, and I want my current partner to be on her birth certificate so that we all have the same surname. How can I remove my child's bio father from her birth certificate?