Not too sure where you live? Uk? Usa?
i'm in Uk and I know around where I live, being school phobic would bring in Ed. Social workers not special school!!They are closing many special schools and having units in aminstream schools!!!
Genuine school phobics get transport to school and support in school. If you are in UK, there will be this provision for secondary aged pupils!!! I would advise being VERY assertive and discovering how these systems can be adapted to help your child. If you are in the UK, I would suggest you would be already be seeing the educational social worker? You usually get contacted by them when your attendance is 85% where I live?
Please... make an appointment at school. Your daughter needs help now if she is to finish her education.