Following up on my previous messages, i am still having problems with their accounts department

Following up on my previous messages, i am still having problems with their accounts department. My account number is I*** and i paid my account at the Vodacom 4U at the Diamond Pavilion Shop on the 3 September 2024. My Ref is EC-1TZW-1IZIOX. After numerous phone calls to their customer service and visits to the store mentioned above as well as calls from Vodacom consultants i am still receiving messages from Vodacom to pay! This is really getting on my nerves and they are a massive pain in the butt. Their service is non existent and they make promise after promise without any resolution! I am seriously thinking of taking them to the consumer council to help resolve this issue as they don't seem to care!