Fnb very unhelpful

I want to close my fnb revolving loan account. I have spent nearly 1hour on the phone being transferred from one to the next and no one wants to assist. It is very easy to get a loan from FNB but when you want to close it then it becomes very difficult. I don't have one hours to spend on the phone and waiting my airtime. Please can FNB assist me with closing this loan account!!