Standard Bank
Debit order done on my account

My STD bank cheque account has been debited by a company called D Dynamix with R99 every month for the last year about.
I have never signed a debit order with them so how did they get permission from STD bank to debit my account.
I phone in March and in May the Call Centre of STD bank HQ and they say I must phone the D Dynamix and cancel the debit order. I requested contact details and at a cost of R80 odd I got the info and tried to phone with no answer from this tele number.
I then phone STD bank call Centre again and they said I must speak to the department, which I did and they said they will stop this.
I am with Humansdorp branch but STD bank dept. says I am with Rivonia which was originally my branch 20 years ago. So now after two months nothing has changed and I still got a deduction of R99 on the 30/5/2013 Reference number 45258130 received by std bank on my cell phone via sms.
Please help as I do not know who else to contact.
PS I am also getting a Stop order from Global Trading for R99 also with the same story from STD bank.

Company: Standard Bank
Country: South Africa
City: Rivonia/ Head office

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