***** at Vodacom

I have been having money debited from my account from Vodacom for the last 3 months. I do not have a Vodacom account I am MTN always have been. I then had the debit reversed by the bank every time, me paying the charges. I emailed customer care and gave them all the details ordering them to stop the debit, can't phone them as don't have a Vodacom number. now i want to apply for a home loan and have been turned down due to a debt with Vodacom, I have emailed to get this bad credit score cancelled and no one replies.