Absolute disgust in FNB

I am totally disgusted in this bank. My son has app**** for an increase in his overdraft. He recieved mess saying application was successful and monies would be linked to his account. This was tuesday afternoon. We are now on Thursday and still has not received his money. When he does a secure chat with them they say they dont know why he received the mess and there is nothing they can do cause the application does not show on their side as taken up. How can he receive these mess and no one in this bank can assist. I find it appalling that there is no help or assistance. Fnb how can we help you is their slogan. I can tell u that that does not apply cause as they have told him we cant help. Really I would not reccomend this bank to anybody as they are useless and can never give a proper answer in anything always nothing we can do. Fnb you need to catch a wake up and find out how messages like this can be received and then when asked questions you dont know how that happened REALLY.