My parents applied to a school without asking me what can I do?

They send the application and they even got a appointment with the headmaster without telling. When they told me I was really mad and I told them I didn't want to go to this school but they told I would go even if I don't want to! I told them I wanted to apply to another school it's an international school and offer the ib programe but they said no without a reason!! What can I do help me please!! The only reason I would change school is if I can go to the school I want I love my current school!! So what can I do and how can I convince them to apply to the other school!!