Customers complaint against Flysafair

Hi my name is Busisiwe from East london. Yesterday went to book a ticket at East London Airport was going to Johannesburg because i had an emergency that needed my attention urgently at that time. And it was going to be my first time being on a flight.so i asked a lady on the desk to assist me in everything because I'm not fami**** with the flight things and i couldn't book on online because there are something's that i didn't understand, i saw online that that the tickets starts from R399-R799 but the lady on the desk decided to book me the expensive one and i was travelling with a child, mind you I'm a student she doesn't know where i get the money from and i asked for assistance and when i tell her but the tickets are R399 why didn't she book the cheapest one as i have asked she said i must read the terms and conditions there's nothing she can do. How i can read the terms and conditions whilst the process has been done already because she's the one who new the consequences but she decided to put me on a corner and on top of that she had an attitude about me being complaining, i believe no one wants to travel expensively where as there's an opportunity to travel cheap and i was just travelling i had an emergency that's why i had to take a flight. I'm so disappointed in Flysafair employees and their service especially when someone has asked for assistance.