Veritas Medical interview questions

HR not punctual and not responsible to inform that interviewer is on leave. Then, waited about 1hr (to HR finish his lunch as he mention on phone) and at last he informed the interviewer on leave during hte interview and quickly grab the staff nurse to become the interviewer and i heard from staff nurse said 'aku nak tanya soalan apa, aku pun taktahu'. this is very unprofessional. but still, i proceed the interview coz i was clueless. the difficulty in this interview is to accept the unprofessionalism.