Billing problem and and line open without my permission

Hi

I want write a complain about MTN bad service and a open line without my permission now they want me too pay R 1322 see my email below I have sent yesterday with a affidavit and no reply Hi

Please find my urgent enquiry about a line that was activated without my permission

Cell phone *** was activated without my consent the only number that active are *** of R299

Can also cancel my contract with MTN I had problems since I took out this contract

Please find my affidavit

Regards