Trouble getting in contact with department

I did a walk in audition at chicago unifieds (BFA acting but posting here because it’s specific to this school) and i had troubles with another school i walked into who called because they didn’t have my audition on file! I’ve been academically admitted to the school but i’m still worried. I have called and emailed the theatre and dance department but no response from anyone, should i be worried or are they just very busy? Also if anyone knows the best way to communicate with theatre admissions please let me know.