Telkom ********** account messing with my bank account

In December 2018 I discovered that a ********** account had been opened on my name through a debit order of about R2900 that went through my bank account. I went to Telekom to report the issue with the necessary document (affidavit,certified ID). I even called Telkom and they confirmed receipt of my documentation and query. I also requested them to cancel the debit order whilst they are doing the investigation as it is messing with my profile at my bank. Today a debit order of R4500 went through. How did this happen if the debit order was cancelled? This means Telkom is doing nothing about this ********** activity. I want this sorted ASAP and this is messing with my credit profile and it is emotionally daring and frustrating.