Vodacom ***** Dispute

I lodged a ***** dispute at Vodacom over devices that were acquired from them under my name. They have reversed the debit order but never investigated my matter since 1 September 2020. It is now 13 April 2021 and i have not gotten any feedback, they keep changing reference number they issue to me whenever I ask for feedback. I am now listed on the Credit Bureau, my profile is *****ed due to this unresolved matter. I do not even qualify for credit anywhere.