Poor and weak service to its customers

My experience with FNB has been nothing but disappointment. For starters I phoned them early this afternoon on their number ***. That number call them on is useless to me in that when I called them I followed a series of voice prompts. Only to be told that the service is not available at the end of the voice prompt. Now my question is why make a number available only to tell the customer if the service is not available. Secondly my other question is why do you also say in the voice prompt but one can help oneself through the banking app. When the banking app itself only allows for maximum of R200 per dispute. What then is the purpose of the banking app? You lot at FNB must stop jerking the customers around by making things available and then telling the customer it's not available. You people service is very poor and weak at best.