Vodacom is debiting my bank account for the contracts I did not sign up for.

Vodacom is debiting my bank account for the contracts I did not signup for. I called them with regards to the matter, they then asked me to send the copy of my ID, Affidavit from Police station and 3months bank statements to their ***** department of which I did sent. Until now I have not receive any response from them. This is frustrating.