Technology Innovation Institute Senior IOS Developer interview questions

Interview Process -1 HR -4 Technical (with_Lead iOS, Manager, Department Manager, Department Director) So Unprofessional interview process, you don't know they are moving forward with you or no. HR was so unprofessional, Even i pass all phases (3 month duration) he send me unprofessional message that internal business team decided to fill other position and they are not moving forward with this position, they reached this decision after 3 months of interviews by wasting my time and company's time and resources. They are so unprofessional. What a waste of time.