NO SERVICE TO CANCEL CONTRACT. MTN DEBITING FOR DATA I AM NOT USING.

I have been calling MTN countless times but no reply to talk directly to service Champion. More than a month ago however I managed to talk to one who refered me to another person who in turn told me to email my documents to calcel my contract to SME Cancellation <***> however I only got reply from this email weeks later that I can only cancel my contract via phone call (which is not going though). Meanwhile MTN is still busy debiting me for data I no longer use. THIS IS UPSETING AND FRUSTRATING. CAN MTN REPLY TO MY EMAILS WHICH HAVE ALL THE ATTACHMENTS THEY NEED TO CANCEL MY CONTRACT. Enquiry Reference Number: ***. Enquiry Reference Number: ***. Enquiry Reference Number: ***