Inavitas interview questions

They reached out me a week ago regarding my application of the job via LinkedIn. First, HR called me on Saturday. While our talking, I mentioned my other interviews and informed them that I have a week for all interview processes otherwise I couldn't continue the process. After that they planned a technical interview which also held in not working hours. I believe that I was really successful all interview process regarding the reactions of them. Furthermore, I solved a English test, I got 97 points, personality test and filled a application form again. HR called me again and wanted to plan a meeting with executives, and I mentioned my available hours. After that, they didn't reach out me again. All my time and my efforts are just waste of time, nothing more. This is really disrespectful behavior. At least they should have informed me. Before applying this company, think twice!