LoadUp Summer Intern interview questions

Was contacted by the HR representative after applying to do an interview. Gave her a bunch of times and she never responded. Emailed her again, then she agreed to a time. Interview rolls around and she never calls. I sent her an email asking if she was still interested in an interview, to which she never responded. An insanely unprofessional process - it takes a special kind of rude to not show up to an interview and then not respond to an email afterwards.