FNB opening an Online Business Account is a **** and the worse service ever

FNB is the worse bank ever, I regret why I opened the business account with them online. I opened the account with FNB earlier this month then I have been advised to email the supporting documents of which I did. I was then notified via email that my account is ready so I can go to a branch(FNB BANK CITY) to collect the card. everything was ok until I started making a deposit. when i tried to make a withdrawal it says the ACCOUNT FROZEN. my question is how is the account frozen when all the document was provided. I then tried to call one of their consultant who was so *********** and she told me that it will take between 1-3 working days for it to be active, how are we going to operate if the account is inactive and our money is inside. this is by far the worse service i've ever had in history