Depends on when the program sends out iis. If they send them out before then and you don't get one you have kind of screwed yourself. I would make sure the program knows you are auditioning there when you set it up to try and avoid that, I have heard of lots of students doing late auditions-i think you'll be good to go.
Make sure you aren't needing a letter from there, you will want that earlier for sure
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