Fnb bad treatment

I'm so disappointed with fnb was treated with disrespect and belittling. Apparently a case was opened against my accounts and no one bothered to inform me about this, I only received an sms to say my cards have been canceled. I called their customer service department and was sent from pillar to post. When I finally got hold of the lady whom the case was assigned to she gave me a stinking attitude telling me how it's my responsibility to keep in contact with the bank when she had the case and never bothered to inform me. I have both the business and the personal accounts with them. If this is how u they treat their clients they will surely loose customers. I'm not happy at all.