candy_floss:Thanks for the replies. My ex and I are not on talking terms cos I feel that he doesn't really care much about the well being of my kids. Like I've said, he only ask to see them once every 2-3 months or even longer. Like in 2013, he have not contacted my elder kid or reply any of her smses when my child wishes him Happy New Year till now. Neither did he mentioned anything about bringing them out. I don't speak anything badly of my ex in fact, or rather I should say I dont even mentioned anything about him. The kids never bother either. We have been divorced for coming 4 years till date. During these few years, he did not bother about them or care for their well being. He doesn't even know which sec sch my elder one is in or ever attended a parents teacher meeting since the kids were born. When my kid was hospitalised a few years back due to fever, he didn't even pay a visit or reply my what's app to at least acknowledge the matter.I understand that having both parents identity are important for the children, but I can't help questioning- if a father is not concerned or doesn't care much about the children, then what's the point of carrying on a surname that belongs to him ?My fiance is ready to legally adopt them as his own and he doesn't want the kids to feel awkward when people start to question how come their surname is different from their daddy. My younger one keep asking if he can call him papa, can he be his papa every other day. I believe that he can feel the effort being put in, cos he will tuck my younger one to bed every night, bring him for enrichment lessons, coach him homework, prepare breakfast and play sports with him etc, something that his natural father never done for him before. In fact, I felt very sad for my younger one sometimes.. I know deep inside him, he yearns for a daddy figure and that's why he is very close to my fiancé. He will hold his hands (instead of mine) and kiss him, and call him papa.. I am at a loss, not sure what I should do.Must have been really hard on you too. Maybe you would like to seek some legal advise first before making a decision. All the best to you and I am glad that you have a fiancé who loves your children as his own and you can depend on. I think i did mention that adoption is different from making a deed poll to change surname/name. A deed poll can be done by the parent who has care and control of the kids and it doesn't cost much. However, an adoption is only possible if the other parent agrees to it and this is more complicated.