Fnb Balfour Parks service is pathetic

The service at Fnb Balfour Park is absolutely pathetic. Around 8 days ago I did a deposit that never went through, all I got was an atm slip saying my transaction could not be processed. I go into the bank enquire, a form was filled and I was told the money would be put back into my account within 48hrs.Till today (more than a week later) I have not received the money in my account nor have I received any communication from the fnb care department,whom I have emailed on several occasions . No one knows what's going on and no one can get back to me either. This is unacceptable. What do I need to do to get some assistance here.