Bad service / Lack of feedback

I went under debt review in May 2013. One account to pay was my Edgars acc I had for many years. I owed approximately R1400. I finished paying my Edgars account mid 2014 & expected them to close my account since I am still under debt review & will be another 2 years. For some reason they started sending me accounts via email & threatening letters from their attorneys to pay an outstanding balance of over R1550. Funny they forgot to send my Birthday vouchers! I even got credit available for R13000. I do not owe Edgars any further money & my account should be closed as per debt review instructions. My debt councillor send several emails to their customer service, me ccd on it, & absolutely no reply. Not even an acknowledgement. I went to Clearwater mall thinking they can assist me to resolve my issue but the service was just as bad as Edgars customer service. Nobody there was competent to answer any question I had. In fact they phoned somebody I had to explain my problem to...as expected still not resolved. When I requested an phone no or email address that I could contact to follow up. They didn't know cos they only dial short codes. Please Edgars sort my account out & close it!