that my study period would only be for 1 year, I was not notified of this fact when I enrolled."
Did you receive a document outlining the terms and conditions attached to your enrolment? You should have been provided with this at the time, or shortly afterwards.
On the face of it, the company has accommodated you during the period of your difficult personal circumstances. It's not your fault that you haven't been able to study for a year, but it's not the company's fault either. It was a business arrangement, and provided they followed the provisions laid down in the relevant consumer legislation you really don't have much of a leg to stand on.