Worst service I have received from DSTV Multichoice

I paid my dstv extra by mistake of which that can happen to any one , so I call them let them know about the error I have made and asked for assistance to refund the R900 difference, this happened on the 27 October 2018 I sent emails after emails with my bank statement, proof of payment, ID copies . And still to this day I haven’t received my money back I get emails from different people responding to me telling me to email the very same thing I have sent five times , thy are so unprofessional only care for thy pockets , cause if I had not paid my subscription thy would have long closed my signal now that thy have to refund thy don’t want to. I want to make everyone aware that Dstv DOES NOT CARE ABOUT THY CLIENTS !!!!!