No response to emails and telphone calls

My husband have an account at Nedbank that is under administration. After numerous attempts to get hold of the department to settle the account to this day I did not get any feedback. This account was R1600 in 2013 and I have been paying R500 per month and R100 Garnishing order that was placed on my salary to date. I am willing to write of all the extra money I have paid I only want to get this ****** account off my name and clear my name. Is it so difficult to answer an email or phone call. I only need the settlements amount and bank detail with an email address so that I can sent the proof of payment through. Going into the bank is not help either as they only give you a number that is forever ringing.