Cell C submits outdated information to credit bureaus

I have written proof that my contract with Cell C was terminated on 30 October 2021, sent from ***. Despite this and many phone calls, my credit reports still include an active Cell C account, which apparently I pay every month. I recommend to anyone to refrain from doing business with Cell C, once they have your details, you remain on their systems as part of their "Loyal" users. I should now take responsibility and prepare an affidavit and submit to Cell C ***** department. It should not require any effort from me to inform the credit bureaus that I no longer have any business with Cell C, it has been more than 6 months since they confirmed cancellation.