Visa Enquity for Ghanaian

I m OWUSU from GHANA and I have gain an admission in to a university to study MBBS in China but I was refused X1 at the embassy. I m confused and don't know what to do now, so I want to inquire that if I m able to enter with either visit or business M, can the school covert it to study X1 for me after registering with the school? All my documents are genuine and I was able to meet all the requirements but I was refused without any explanation. Thank u