Messed credit report by Nairtime South Africa PTY Ltd

took out a VodaLend Cash Advance which I repaid in full! VodaLend Cash Advance is provided by Nairtime South Africa. There isn't much information about this company available on the internet, which is already a red flag.

I consulted my credit score and saw that I am listed as a defaulter by Nairtime. This is completely incorrect as I repaid the VodaLend Cash Advance in full and I have proof of that. My credit score is now damaged because of Vodacom and Nairtime. I sent an email to Nairtime, but they sent me to a chatbot which does not seem to have help