Complain to RCS

My problem with RCS is that last year around October 2023 I managed to pay off all the amount that I was owing to the account and since then I've never used the account but surprisingly this year around March I got a message that I was owing R319 and I still payed that amount then same day after paying I called their customer care to request that they close the account for me because it has no use anymore and they took all my details and told me that I will get a confirmation that the account has been closed but never did then again in June I got a message saying I'm owing but I NEVER used the account and when I got to their customer desk at game to complain about the issue the lady was so very rude to me and never listened to me and what I was saying therefore I need help to know how do I get to keep on paying the account while as I don't use it and when after paying I request to cancel the account why is it never closed as requested to be honest in very angry and annoyed about this RCS account and their rude employees, to others out there never use this account it's bad news honestly I also regret having this account and my final wish is to cancel it with immediate effect!!!! 😡😤