First, I think it's great that you are making support payments. Raising children is expensive, and like it or not, this is YOUR daughter. You may not have wanted her. You may not have planned her. You may not have had any say in the fact that she was born instead of aborted, but this child is YOUR daughter. If not for you, she wouldnt be here.
This girl is 15 years old. Her job at this age is to develop autonomy and figure out who she is. But she cant do that because half of the puzzle pieces are missing. She isnt asking you to come to her birthday parties or take pictures of her in her prom dress or walk her down the aisle when she gets married. Nobody is asking you to be a parent. All she wants is to learn a little bit more about you so she can figure out who she is. It's not really about you at all. It's about her.
You're being awfully selfish. And cold.