*****ulent upgrade

I’m so disappointed with MTN, an upgrade was made under my name of which I did not agree to and whenever I’m trying to cancel it they are telling me about 24 hrs, 48 hrs and up to a week for them to be able to assist me. Then when I do a follow up they advised me to report it as ***** but when I try to report it they keep on giving contact details of OES to communicate with them even though I told them that their contact details goes straight to voicemail. I’m paying for something that I don’t need how can I pay R600 for 2gb while I have a contract with them for 100g @R150.