Not received any feedback after multiple calls and mail as well . They ask python questions and Machine learning basic questions also give all answers correct but it's wast of time

I went through total of 5+ interviews for same role. 2 rounds were taken by Blucognition employees. One was technical and other was business. Then next 2 by their client Quadpay.(one technical and other business). I was liking this clients project. After that they thought of changing my client without letting me know and setup my interview by another client (Zipco, parent company of Quadpay). Its project was not much interesting and was different from what I was told before applying to this position. In all the 5 rounds my feedback was positive as per the HR. But now sinct the client got changed they decided to have another round of me. Till this time I already gave 3 technical and 2 business rounds and they decided to schedule one more. I talked to HR(can't reveal her name) about this and cleared her on my take that I am interested towards first clients project. However, she got offended somehow and hinted at not going forward with my candidature. The rounds were smooth but the experience with HR was not good. Till date I haven't heard back from them.