Rude agents with no sense of professionalism

I received a message from Standard Bank informing me that my account has been withdrawn. I call back the respective branch to find out how my account has been overdrawn because the last I checked everything was fine. I luckily retreived a bank statement the last day I used my account. So I tell the agent that I have a statement which says otherwise about my transactions and she tells me with great attitude that I most certainly do not have a statement I am looking at and that there's no use for us to continue talking. I should rather go to the nearest branch and find out what she is talking about. I tell her why can't she continue helping me as I told her that ob the said date she is telling me about the transaction I did not use my account for anything. Her attitude really left me unhappy with the bank and I am most certainly joining a new bank where customers will be treated with respect and dignity.