Worst bank ever

After about a year's worth of disappointments I have decided to close all my fnb accounts. I already moved my bond away from them as I am tired of empty promises, **** services and complete lake of taking responsibility. Monday I tried closing my accounts over the phone and was told to log onto the app and do it, the app stopped working on my phone months ago when fnb stopped supporting my Windows phone. I was then told to go to a branch. I went to the branch just now and after more than an hour still don't have all my accounts closed. Sitting in a branch, talking to the bank on the phone (rember I am sitting in the branch) I am told that the bank that I am sitting in cannot close an account I have with them and that they can only do it over the phone. So I am told on the phone that they have to call me on the phone as they cannot help me or close the account unless they call me, all this while I am on the phone with them inside one of their branches. Absolutely pathetic.