Heytea Marketing Intern interview questions

Unprofessional interview process. I had three interviews and didn't get the internship. 1st round HR call. 2nd/3rd round manager zoom interview. I got an assignment on round 2 and I think it's well done (I made a webpage)but... I had the third interview with the manager again to go over my assignment. And the manager was late for both interviews for more than 20 mintues! I had to call the hr and rescheduled, which was very unprofessional.