Investigations on standstill with no communication

I have emailed and called bidvest bank daily since the turnaround time, before that it was 2 weeks before my case was attended and that took me following up and telling them I had already submitted the documents required for investigation. They could not reverse transactions made into my account which is now suspended. They do not seem to have access or knowledge at the call centre as helpful as they try to be, to the information around investigations and the email address provided is silent silent silent. This is unacceptable, I was not asked of any supporting information and my concern now is if they do need other information its another 2 months before they do anything concrete and money needed for me to provide my service is stuck in that account now. I am again following up as a matter of urgency on the status of the investigations into *****ulent activity on my account reported to this email and department. I have literally called every day for an update since the turnaround time lapsed. My emails have not been responded to neither have I been able to get any recourse via the telephone number provided. I cannot emphasise how this lack of communication is impacting me. The account has been on hold payments are made, I cannot access the account or statement to feedback to people who are also impacted by the hold on my account. Some communication and proper turnaround time adherence would be sorely appreciated.