Ill treatment.

I just had the worst experience for the first from my favourite and most trusted bank Absa. I accidentally opened an overdraft account late last year and visited their branch in Auckland Park campus square to seek assistance with the closure of the account. She took my contact details after I explained my issue to her and advised me to not use the account at all. She said I should wait for a call from them to confirm that I want to close the account. Two weeks later I get a call from them that I owe R275 for the account. When I call them, they refer me to the complaints department and when I call that depart firstly, they give me a stinky attitude and then lastly tell me told hold for a reference number, I have been holding for over an hour with no response. when I try calling back, I get no response. I am truly hurt and disappointed because now I do not know how I can get this matter resolved.