Credit beraue not updated

I paid up my vodacom contract in August 2023 and received my paid up letter, called and emailed numerous times to have my credit beraue profile updated as it negatively affects me. No one has been able to assist me since then. I noticed on my recent report that they are saying I missed 6 payments which does not make sense since the account is paid up and closed. I am very disheartened by this and I would like to be assisted immediately as I cannot wait any longer to have my name cleared