Cell C messing up Credit record

I had a cell c acount for many years but decided to go over to vodacom because I struggle with signal at work but now the big problem is i dont have a cell c acount for more than 2 years and from june 2022 i start to get updates from my credit record that this acount is paid ap to date so i raises a query about this at cell c and they told me this acount shows closed on the system i also disputed this at the credit bureaus so cellc was taken of my profile just to get is added again at the end of the month after the credit bureau received the info from cell c acount paid up to date, now every time i dispute this at the credit bureau they take it off and so it get added back at the end of the month and this is messing up my credibility and my score, if anyone know how i can get this issue off my back will appreciate