Bullying clients and doing things that are not allowed by their protocol

I am Busi.I had a very horrible experience with Absa bank,The grove branch.In March,this year money was deposited into my account,the same time I was expecting money.I used it,to my surprise it is claimed by a guy who works at Absa,Mike that the money was accidentally deposited into my account.I went to try clear the issue with them since they freezed my accounts.It was shocking that they tried too bully me into signing some papers,I was in their bank for more than two hours,while they kept moving me from one person to the other.They went through my personal things without my knowledge nor permission.They told me that I will never get the money I banked with them a few years ago if I do not sign the papers.Luckily I did not sign,I left and tried to call them to ask them to unfreeze my accounts so I can use my money.Mike keeps saying he will call me back,until today they haven't called.I am going to take this matter to the ombudsmen because I cannot pay for some stupid mistake that was done by the upsent minded,stupid person.