very long story so I’ll keep it short, basically me and my child’s father separated due to me and him just not getting along anymore I wouldn’t have really called it a relationship anyways we didn’t live together it was more of just family dynamic or just co parents but he was still possessive over me. I went out with friends and he got jealous so fraudulently rang police with false allegations saying I assaulted him which led to social services getting involved I’ve explained to them the situation and they don’t have an issue with me or my over all parenting their main concern is his mental health so this has led me to cut all ties with him completely I know many people will say I’m using my child as a weapon but I honestly just don’t want him in my child’s life (atleast until he’s sorted himself out and got sober) then I’ll rethink my decision but my main concern is my child’s mental health and welfare not his fathers they didn’t really have that much of a bond anyways my child’s all for me, the problem is his names on my child’s birth certificate and he has his surname and I’m wanting to change his surname to mine it’s only right considering we weren’t married or barely in a relationship so why shouldn’t my son have my name when I’m the one who birthed him and care for him daily. How would I go about this do I need his permission since he’s on the birth certificate or am I classed as having sole responsibility since I’m the only one caring for him his dad doesn’t see him daily or even weekly it’s more once or twice every couple of month and he’s in a few hundred arrears with child maintenance he’s barely even a father at this point more like just a sperm donor I hate the fact he’s got the privilege of having the same name as my child who he doesn’t care for or look after.