Vodacom is ripping me off

I app**** for a contract online and it was approved and I then canceled it before I even used their services. The online website said I must go to the nearest branch, I went to one of the branches in Keywest. When I got there I was told they are unable to cancel contracts that were done online.

Fast forward, vodacom is now deducting money from my bank account, but I'm not even having any service from them. I have to keep my bank account empty and now unable to use it on the other hand, I keep accumulating fees for unpaid debit orders from vodacom. Last month it was R330 this month it is R770. Now I have a contract that I don't even use but they keep claiming from my bank account.

Can someone please help me out, Vodacom is ripping me off.

I'm now thinking about escalating it to the ombudsman.