Stupid bank

So FNB closed my business account I went to reopen it and find out where's the money gone to that was in the account unfortunately a week later still no answer's from them yesterday I decided to go to the branch again and the business account got frozen because I'm hiring out one of my bakkies to a friend of mine to do his work now the money went into the business account.... so the person who closed the account now frozen the account because she want to know what that money is for I mean it's non of her business but I got to the point where I'm done with FNB