Useless ***** department

Telkom debited my account even though I do not do business with them. I made them aware of this and also sent them the documents that they required in order to start an investigation. I saw that the ***** department was sent the documents but since then, no infomation has been given to me. I have been following for the last 3 months yet all I get is silence. Now I am being called by debt collectors on behalf of Telkom, and Telkom keeps debiting my account. I am tired of reversing these transections. Please whatever account you are debiting me for and carry out that investigation. Useless!