I've been trying to enroll for a week for the cour...

I've been trying to enroll for a week for the course. I have received calls from the consultants marking an interview but no one calls me at the time and date set. The service for whatsapp takes hours to respond and when you respond, just say that you will call me.
I wanted to personally go to solve everything, but I do not have access to the necessary documents to take and I do not know if those responsible for the interview will be available.
I have the demand for the course and the investment, but I just can not even do the interview.
I'm very upset about this, but at the same time I'm starting to think it's even better, because if it's difficult to sign up, which should be the basic principle of a particular university, imagine to solve a problem after you've enrolled.
Unfortunate.