HighRadius Selenium Automation Test Engineer interview questions

Got a screening call from Talent Acquisition team. After that they gave me a selenium project and asked to complete it before the interview. I developed the framework from scratch. Did a lot of hardwork. On the interview day, the interviewer didn't even went through the project. Both of them asked questions about Java and Selenium. I gave all the answers correctly (All were pretty straight forward questions). After that, I emailed the HR about the review or any updates of my interview. She didn't respond. I called her few times, she didn't pickup. She cut my call multiple times. Didn't even care to reply me. After many days i mailed to their head of HR team. They replied that you were not selected. I asked for a review that what went wrong but never received any reply. Note : If they will ask for doing any project before interview, think before wasting so much of your time.