Laceco Architects and Engineering interview questions

It was the most unprofessional procedure i ever faced in my 7 years career , the interview was posponed 3 times (10 minutes before the interview time) even though i explained that having an interview mid day time is hard because i do have coordination meetings after i asked if the interview can be done at 8.30 am - 9 am and they refused. Such unprofessional.