I had the same situation. They called twice during school and left no message.

Who is this I dont answer my phone never seen this number before

This person called me 3 times today. 2 hours between each call. I didnt answer any of them but they didnt leave a voicemail. I hope it isnt a college. If so, i just lost my opportunity of ever attending Full Sail. haha

Full Sail University.  My son had submitted an online form requesting information.  They are a bit overbearing - calling multiple times a day but never leaving a message.  My son is still in school, and I told them he would call them next week when he is free during the day.  I guess nobody passed on that message.  We did request contact, but they need to CHILL.  LOL