Is there a hotline for children in distress in your country? If so, how do they work? (details inside)

This is kind of a continuation to this question since new things have cropped up.

So back on that thread a jelly showed me a hotline number for child protection in my country and people there suggested me to give her the number. I did, and I didn’t expect her reaction: she told me she is already aware of the number for a long time, but she refuses to call in because she is “too old”, and even if she calls, they can do nothing but offer advice. It was briefly mentioned in one of her lesson. She told me her teacher said they wouldn’t intervene unless something really serious happened.

I’m not familiar with this kind of stuff because it was never a thing in my generation. But in my opinion, isn’t the entire point of the hotline giving support and practical advice? I’m not sure what she is expecting here. Does she expect someone to come snatch her away from the dad?

Is there such a service in your country? And do they do anything other than giving advice?