Random One....

SO I'm going to summer sessions this month and was TOLD they start on the 25th... I was told this by an adviser who registered me for classes, and again a few days ago by a damn DEAN. So Can ANYONE please tell me why it is that I just went online to check on my fall registration and classes started YESTERDAY...and being that I'm here at home writing this blog that means that I also missed class today...Now would it be wrong of me to go on a cussin rampage and cuss everybody in that office out, or just chill out go to classes tomorrow and do what I have to do?!?!?!?