Pathetic service, where is the Integrity?

I am a registered student, I have decided to change my course. I receive no feedback and information on how to get this done. Each time I call the student services, they cut my calls and pretend they cannot hear me, this after me waiting on the line for a while, bearing in mind I have a full time job and am very busy at work so I do not have the time to spend on the phone then get nowhere and what's frustrating is i am not only wasting my time but my money on airtime. My account is up by on date and i have a right to change my mind. I was being hounded everyday by the consultant to pay my deposit to secure my enrolment, now this very same agent refuses to help me because it is not her job and I am getting no joy from the *** number. I am appauled by this service and I will not recommend my friends to study at damelin because you are ON YOUR OWN AFTER YOU PAY. I studied part time with unisa and had no issues. Comparing to this service, I am speechless. Nobody cares about after sales. They are passing on the buck to someone else. I was so excited to study now I wish I chose another institution to study . I would appreciate it I can get some feedback.