My daughter tells me she is feeling persecuted in her school?

I moved heaven and earth (or so it seemed) to get my daughter into private school at very short notice. She just HAD to go there. We are separated by distance, I am on messenger all the time but she usually only contacts me to tell me that she feels persecuted in the school of her choice and now wants to go to a different private school. For instance, she got detention for wearing her hair down. Another time, for wearing mascara. I told her when she insisted on going there that it would be strict. I can’t change her school now. Is she just being a whiny baby or what? Should I contact the school and try to find out what is going on?