Suspicious ******** activities within nedbank

On the 12th of February i went to apply for an overdraft at one of the nedbank branch. The process was taking longer than the normal processing period until the nedbank employee ask me to leave and that she will continue with the process in my absence. I had to change the username during the session since I couldn't remember the previous one. The following morning she sent me a message that the OD was sent into my account, which i did witnessed it. On the 29th of february i noticed that the same amount of the over draft was transferred to an unknown account and a cashsend of R2300 was sent to number *** which is unknown to me. I then noticed messages from nedbank stating that my phone number was deactivated on emotes from receiving sms notifications and another one stating that amendments on e notes has been processed. Both messages came at 02:04 Normally such messages should be followed by if you are not the one who requested one should call *** hence mine never showed that. I believe the number used to replace my number from receiving messages can be traced by nedbank including the account number were the money was transfered. They told me investigation will take 4 weeks. All i heard from the police investigator was that i am the one who did those two transactions. That to me proved that no investigation took place. I suspect the nedbank employee who assisted me has anything to do with this *****ulent activities that happened on my account. Nedbank is showing no interest in helping to resolve my issue as if they are protecting their own employee. Normally change of contact details is done at the branch , and this suspiciously this one was done at night. Without my permission.