Worldline interview questions

5 rounds including the technical and hr, the hr was easy and the technical was easy as well but there was something very unprofessional in the final interview. I was going to get an assignment but never got it and received rejection directly.

I cleared 2 rounds of Interview & was scheduled for a final round. Hr called in 3 hours prior to the final round & advised they have decided to go ahead with another candidate. The call lasted less than 50 seconds. The Feedback that i received after clearing the two round of interviews was very positive. However, very poor handling of the entire process and they wasted my time & effort. No transparency, contradicting views & a general lack of respect in communicating the same.