Telkom, Wrongfully takes money, and refuses refund

Telkom Mobile upgraded my contracts. I had 2 Samsung galaxy S4 Mini Phones which I upgraded to 2 Sony M4 Aqua devices on the SMART 100 package. - 300 a month. I also had my contract limit set at R0.00 so that there would not be any nasty surprises on my accounts at the end of each month. <br> SOMEHOW, Telkom added a third M4 Aqua device (which i do not own or have ever received) not only that but this device uses approximately R2,000.00 !!!! worth of data a month, Which I pay for via DEBIT ORDER without any way of reversing it. on 31 March I called the call centre asked them to check it and call me back. they said it would take 72 HOURS and gave me case number ***2.<br> I have been calling them every week for the last 3 weeks and Telkom simply dodges my calls or says someone will get back to you after the waiting period...which is 72 hours.. it has been more than 3 weeks now, still no resolution and the next pay date is probably going to take more, and refuse to give it back.<br>