Poor service from Vodacom

It's about the 3rd time now that there's ***** happening with my Vodacom account. I had a contract with Vodacom that was canceled last year. Before it was canceled, I reported a ********** upgrade and a ********** new contract taken under my account. I sent proof that it was indeed not me. This was sorted out. I even received confirmation from Vodacom that my contract was canceled. Debit orders from Vodacom kept going off my account and I decided to block them because I do not know anything about them.Today, I got a call from the collections department telling me that my account is in arreas. They say that I took out another contract with them but I didn't. I've reported this to their ***** department again and hope it will be resolved. I'm so tired of Vodacom.