Type of literature and elements of "a defenseless creature" by Antón Chejov

From the three different types of literature that exist we can say that this tale belong to a primary maybe "simple" type of literature, because is a documentation of the events across some specific time. this can be a report or even a email, we can also compared the story with journals and newspapers which are examples of  secondary literature type but its better to say that the story is from the primary type of literature, the setting from the story is the bank, the three main characters are, Kistunov, a bank employer, Alexey Nikolaitch, another bank employer and pal of Kistunov and finally Madame Shtchukin, the woman who goes to the bank. The plot of the story develops in a woman transforming a normal day in a bank into a nightmare, this woman goes one day to the bank to solve a problem about her husband salary who is ill, the conflict begins when the employers of the bank tell her that the solution of her problem is not in a bank, so they try to convince her to go somewhere to a place in which someone related with her problems can help her, but the woman just annoys the employers making they go insane, so finally for solve all as the solution of the story we have that the employers give her the money she was asking for , this happens because the two employers were so tired and irritated about her, so as they can find another choice they give her what she wants, and that money wasn´t money of the bank, that was money of their own pockets and then when the woman looked well served and watch in her hands what she was claiming she left the bank, but at the next day she was there again claiming for something she already has.