Standard Bank staff threatened me with violence

I have been having issues with Standard Bank regarding unauthorized debit orders going off my account. After they refused to stop it, or refund me charges deducted off my account, I had decided to close my account. I Went to their branch in Forest Hill City Mall. While trying to close my account I was told I Owe them R58.13, than was told a different amount by a different person. I refused as at that time my balance in my account was R0.12. They said it is charges they loading end of the month. I refused. Asked them for a letter to state that I cannot close without paying them this funds. With the date. The bank told me they are not permitted to give me that letter, the branch manager miraculously was at a meeting, and the area manager could not be reached. I became very upset, and raised my voice, at this point the security guard came into the bank, and the consultant doing the information desk also approached me. They both made several threats of violence towards me. I am appalled by this. I will be going to the police station to press charges against their staff. I will also be taking this to social media. @Standard Bank, I will not use this account, the fees will accumulate, and you will than look for me after it reaches R1000. I will at that point take this to court, cause I am lodging a formal complaint with the National Consumer council regarding this. And every other government department who can assist. Time for you to stop cheating your customers.