Pathetic FNB has always been terrible bank for businesses but this has gonne beyond terrible.

Someone called FNB and claimed to have sent money into my FNB business bank account and FNB has block my account based on that. there is no evidence of the payment in my account on the day specified. But FNB has stopped my business operations, they can not help me because they are waiting for evidence from the person who claims to have sent the money. In the meantime I have to wait for the investigation.