Unauthorized transactions on my bank account

I noticed a debit order on my bank account from MTN. I have never had a contract with them. <br> I called the ***** line of Standard Bank immediately. I was passed from one department to the other without resolution. After an hour of calls and no one helping me, I was told to send an email. I did that and got an email in return saying I would be contacted within 24 hrs. It has now been longer than that.<br> I went into the bank to sort this out and was told that they can't stop the debit order coming off.<br> The bank told me this is a matter between myself and MTN.<br> I find this totally unacceptable.<br> I pay Standard Bank a substantial amount of money each month to look after and safeguard my money.<br> They have openly admitted that they can't do this or prevent unauthorized debit orders from happening again.<br> The bank teller then left the problem up to me to sort out.<br> And I'm still waiting to hear back from Standard bank after my phonecalls and email regarding this<br>