Have to do audition but never done ballet

So I applied for dance college.I just got sent an email saying that the audition is next week and I have to take a short ballet class in it but I've never done ballet.I've been dancing for years tho.I signed up to start classes but the time hasn't worked with my work timetable yet.I've been trying to do online classes etc for the last few weeks.Am I screwed😭😭Please help!!!