Horrible service

What a horrible service I am getting from FNB, all I need to do is remove the available credit on my straight limit. I have even ran out of airtime being sent from pillar to post, when I get to the right department they still can’t help me because they are receiving an error I must be sent again to another department. I am sure I have Brenda transfered to all the departments that they have at FNB. Why is getting assistance with something so simple such a hustle.