R485000 MISSING FROM ACCOUNT

On 18 September at 8:00 our Daily update sms showed a huge loss of money. On logging in we found a transaction had been done without any notification or permission on 17/09/2015. We contacted our banking agent and were advised to register a case with SAPD and fill in forms. They would be in constant contact with us.Nothing till end of business then a quick e-mail that the case is with the right people. Will be investigated Monday. Nothing till Tuesday when we raised concerns that as we are a small g**** farm, should we not start looking at the worst scenario and speak to the credit department in case cash flow till December is impacted should this case take a lot of time to resolve. She said she speaks to forensics at 12:00 Wednesday and give us feedback. None. On Friday we contacted her again and said that we cannot endanger our years income, our harvest, has she spoken to the credit department? She will do that on Monday. Then forensic department contacted us and said the case was escalated to e crime. On Tuesday we get an email that the case was sent to digital business. They are investigating. But we get no response of how we are going to proceed till they have finished.