Lack of Communication, poor service and not professional

FNB Home Loan Service is very poor. I have a bond with them since Feb 2017. My account is up to date with additional funds. I lodged complain over the phone and Consultant were not helpful. I then lodged another complain via email (***) on the 06th March and I was told the matter will be fully resolved by 18 March and my account is updated which is not true since the balance is R0. Until today, I am still being asked the same question of what my concerns is after I was told they are still investigating. So far I have been communicating with 3 consultants who are asking the same thing without solution. When trying to call, consultant will hang up the phone or just be quite on the phone. I will not advise anyone to bank with them. Their service is horrible