Waiting for payment

So i was offered a contract at one of the government schools in the western cape as one of their pupils were injured at the time,bare in mind that it was a very critical time as it was exam time and children needed marks fir their report cards so it was absolutely crucial that i make little to no mistake at all because it was my chance to prove myself as a worthy teacher. I was up late nights and early mornings marking and accessing points needless to say that it was stressful and my family suffered as i had to shift my focus. After my contact ended i hsd the secretary file my paper in order for me to get compensated for my services, i am still waiting every time I phone they tell me that i must fill in forms because i am not on the system,this keeps happening every time that the payment should be disbursed. I phone fill in new forms and it's a waiting game from scratch again. I'm at my wits end. If this is how WCED treats contact employees then i would not advise anyone to work for then, my school of employment was wesbank high in the Western Cape