Account Settlement

I have been trying to settle an account I had with Edgars and this has proved unsuccesful.I went to your branch at Maponya Mall and requested this and was given the number ***to which I was re-directed to ********** .I was then told my account has been handed over to NSC and given the numbers ********** /19/28 of which all are not going through. I called ***and was given ***also did not get any help. Is there any way I can get assistance?