It should called change your visa statement.
However please do remember, there is a risky if the tuition fee of both schools are totally diffferent.
(ie: A is 13000 per year, and B is 7000 per year)
If you want transfer from A to B, its easy
but, if you want to change from B to A.
Immigration office has enough reason to reject your application, if you dont have enough documents to proof that you have the money to support yourself while you are study in school A.