Disputed purchases still not attended to

I made my last purchases at a game store where I normally do my purchases on the 25th of November 2018 for R 2483.70 and R 2203.50 and I also paid R 5000.00. From there my balance was R 937.55 which I was owning. On the 30th of December 2018 while I was at home from work I started to receive sms'es saying thank you for purchasing , can't really remember how many of them because I was then tried to call the number that is at the back of the card and I was kept on hold until I decided to call the game store where I normally do my purchases. They informed me to get an affidavit and a certified copy of my ID. I brought it at the game branch on the very same day. On the 2nd of December 2018 while I was at home again I started to receive sms'es saying thank you for purchasing this time I went straight to the game branch. I was again informed to bring an affidavit which I Also brought on the very same day . I was told that all the documents I have brought have been scanned to RCS and they will resolve my issue and will take about 21 days. Seeing that I was still owning them R937 .55 I decided to pay R1000. 00 on the 5th of January 2019 . Sometime in the middle of January I received a call saying I must come and get a new card and my they have resolved the disputes. On the 25th of January 2019 I went to the game store and I was replaced with a new card. To my surprise to use it I still owed more than R6000 and I went to the RCS counter where they put me through to their customer service and I was told that their ***** department only received documents for the 2nd of December but they will inform who ever was dealing with the dispute and was not in for that day but she will give me a call the next day . Up until now I'm still waiting for that call and it's been over 2 weeks. The branch did prove to me that the documents for the 30th were scanned to RCS on the 1st of December 2018. Nobody even bothered to inform me that where was my account used and how because I the card holder is not even allowed to buy without producing an ID. It's been over 2months and I am getting messages that I must pay my account. l don't owe RCS anything I still have all my slips from the 25 of November , they must just fix my account.