Extremely disappointed with FNB and the service I

I currently have a personal loan with FNB and on the 8/6/2015 2:32 PM I called FNB Contact centre to change my debit order details (Banking details ) and they requested that I send an email with proof that my salary goes into the account in question and I did exactly that . The email address I send my documents to is [Email Removed] and today I called FNB to change my debit order date because I am changing jobs and will not get paid on the 20th but will only get paid on my last working day which is the 30th and the agent tells me they can't do that change because my account is in arrears ,it appears that my initial request was not fulfilled but the is notes on the system showing that I requested the change and proof that I send the e-mail with the required supporting documents and I would love for FNB to do the following and do what is right <br> o Explain why my request was not actioned <br> o Explain how this affects my credit record and what will they do as the service provider to clean this mess.<br> o Pay the fees that my bank charges for a dishonored debit order <br>