Certificates

I did my course with Victory training collage N4,N5 and N6. I only received N4 certificate. Everytime I asked them About my certificate they says department says system show irregularities for N6 certificate, I passed communications and Office practice only then I last year june 2015 I wrote legal practice and information processing after suspension.and for N5 and I pass all subject at the same time but there is no certificate . I'm so angry cause I send thousands of rand in that course. You are my last hope please help