Furious client

Have been going up and down, logging calls making but nothing I do assist. I subscription with showmax through the telkom app. Received my invoice on the 5th of June, only discovered I have two showmax subscription that I being charged for. I also thought the subscription was free for three months. To this day this has not been resolved. But I get smses and emails saying that the issue is resolved.

I reversed the money I have been charged extra for and made a manual payment, but the made another deduction on my account to make up the difference I did not want to pay because of the pending case. Now I being charged for reversing the money, while my issue on the other hand is not resolved.