I assume you're talking about transfer?
I don't think there's a problem other than losing your deposit.
If you don't want to go to that school, just don't enroll.
The deposit is only to secure your spot in that school. It's not tuition.
ye, i agree with 2F. if you decided to enroll in one school, you will be asked to pay for the application fee and tuition. the application fee is nonrefoundable. and you can transfer to other school after you enrolled, if you already pay the tuition, you can talk to the admission officer directly.