Fnb does not care about business

Fnb is disgusting, they blocked my account without notice. I run 24 hour business! I had 3 cars go fill up at Engen to find out they blocked my account for no valid reason. This is just outrageous. Now I'm standing at Engen with 3 cars. I have money I can't use. And out of frustration I'm writing so others can know fnb is the worst.