CONTRACT UPGRADED TWICE WITHOUT CONSENT

I took a out a P7 Huawei handset almost over a year ago on my *** number and to this day , its has been the worst experience of my life as I have **********ly been upgraded twice without my consent and I personally feel that my details are being compromised by MTN. I initially get debited R386.01 monthly and to wake to a R908. debit order unknown to me is frustating. Therefore I want to cut all ties with MTN and have the contract be immediately settled and cancelled. Because how do your staff do an upgrade and release a phone without the customer signature and verificatio. you are by the worst network service provider in SA at the present moment and I want money reimbursed before I escalated the matter to the Ombudsman. <br> And PLEASE DO CANCEL AND DISCONNECT ANY OTHER NUMBER IN MY NAME AS I ONLY USE THE *** ONLY!!!