***** on mtn account

I have recently been able to conclude that there has been ***** on my mtn account that occurred on the 24/5/2015 I have been in contact with mtn Zanele in particular and informed her of this via email. I have had no response from mtn regarding this complaint. After 2 weeks of struggling to get an answer and information out of the call centre I now have no one to help me deal with this matter at hand as no one responds to my emails or calls. I have all the reference numbers dates and times regarding this matter and I would appreciate it if someone could please get back to me and help me clear up the problem on my account .