Student Number 438878

In 2018 I have registered with Damelin for Architectural Draughtin course so I was required to submit assignmest and write exams of which I did that, but the problem is Damelin is refusing to give feeback on the assignments I submitted and every time I sit for the exam, I don't get the exam results back, when I called the student support regarding the matter, they keep on saying they will come back to of which they do not, now I cant have my Diploma because of the incopetency of Damelin crrespondence college, for not being able to provide my exam results and assignments feedback