WeTravel Frontend Developer interview questions

I initially had an interview with HR, followed by a 1-hour technical screening. The process was straightforward, with a few soft-skill questions that were manageable, and I was able to answer nearly all of the technical questions. These included identifying common mistakes junior developers make, some foundational questions about React.js, and a HackerRank question where I was asked to explain my solution and calculate the time complexity, rather than writing code. However, after four days, I received a rejection email with feedback that I felt was unfair.