Express Scripts Information Technology interview questions

First interview went amazingly well. Second Interview not so much. First it took a while to hear back after the initial interview. Then the interview was scheduled on a date/time I had said I wasn't available but I wanted the job so I made arrangements to be available. Things really went south when it turned out the second interview was neither for the job I applied for, or one I was qualified for. Got a "thanks but no thanks" letter via e-mail the next day even though they acknowledged the error and promised to correct it.

This is for an internship position. Recruiter was 20 minutes late to calling me. She ended our interview after 5-10 minutes when she found out my GPA was not 3.0 and above. She should have asked me for this information before scheduling with me an interview because then i wouldn't have spent so much time researching the company and preparing for questions. She said she would send me a link to a video interview to see if the hiring managers would be interested anyway. She forgot to send me the link so i had to ask her a week later to resend it. I spent 2 whole hours preparing for the video interview. I even isolated myself away from family and friends so that i can focus on this interview. I was told two weeks later when i emailed the recruiter that the hiring manager had already extended an offer to someone else he or she already had in mind during my interview process. I just thought that this was disrespectful and unprofessional because i prepared like crazy only to end up not getting called on time, to have my phone interview cut short, and to not even have a chance to be considered for an in-person interview. Waste of time. Avoid applying here.