RCS - Do you make up your own numbers on statements ?

Been waiting for a month + for RCS /Edgars to tell me exactly how I bought shoes earlier this year for R799.00 . After making payments of R450, R350 and R150, I still get threatening sms's stating I should pay my account immediately to avoid negative payment status. My statement for August states I still owe R803 ? Till today no one has given me answers, no response to emails, I have even contacted the Credit ombudsman. I have contacted the CEO of RCS Regan Adams still no answers, Edgars/RCS don't seem to worry much about getting this resolved, and in the meanwhile my credit score is feeling the impact of the incompetence/lazy/arrogance representatives of RCS/Edgars. Your automated mails stating you will respond within 48hours is just another lie, as in one month I got one call from a guy that didn't really seem to know what he is doing and he stated he will call me back within the hour, that was 9days ago.... Can't wait to get this resolved and close my account with RCS/Edgars. And stop harassing me with your sms's daily up to 3 times in an hour due to your own negligence and start giving me calls to get this sorted. Quick to take customers money but never get service from RCS. This is not my first encounter with RCS about payments and account balances that aren't correct.