Nedbank Leaked Client Data Information to 3rd part

I contacted Nedbank on the 12/08/2015, to adverse them that a 3rd party received my personal loan statement from one of their employees, and as made copies of this information and is using it against me. My personal data has now been exporsed to 3rd partys and I am not sure who else the person has given my information too. I have spoken to different superivers and finally ,my case was sent to Group ***** ,a guy by the name of Justice. This was on the 01/09/2015, I've made 10 calls to Justice and he has done nothing and never gets back to me. I've been banking with Nedbank for over 10 years , and this is the service you always get from them, this time they have gone and leaked my personal information, and no one at Nedbank wants to help. This is truely the worst bank to bank with, if this is the type of staff Nedbank employees.