Sagent Pharmaceuticals interview questions

Went through 4 interviews over the course of 3 weeks. After the final interview, I never got any responses from the hiring manager. She completely ignored my follow up and ghosted me.

Scheduled to call me multiple times. Confirmed the calls multiple times. They never fulfilled their calling committments. Made it a waste of time. The representative seemed nice over email but its insulting the lack of professionalism that was displayed.