Idp Ielts — when i have medical problem during the test, the manager tell me no one will help me and treat me so rude

I am writing to complain my speaking test due to medical problems i was late to my speaking test. Before the exam has started i have already shown the inspector i have a medical problem and would need to take the medicine inside the exam hall, which they allow. However, now they refuse to admit that i have shown them and mentioned i have a medical problem and refuse to give me any help; also forcing me out of the exam hall. The inspector told me that i should have told them i would be late for the test but i was in the toilet so i couldn’t contact them and when i got back to the exam hall they told me it was too late no one can help me. I have a diarrhoea problem which i have seen the doctor in korea and period pain which i need to take the strongest pain killer from uk, i believe that with my medical problem they should allow me to retake my speaking and i couldn’t control my illness.