Boston Consulting Group Front End Developer interview questions

First they call me for an introductory chat, where I had the opportunity to introduce myself and learn more about the position and the different rounds of interviews. After a couple days they call me and let me schedule a day on which I was going to resolve the case study. The test was time limited to 24h, and code-wise not too challenging. (even for me, being a junior developer). They didn´t let me continue as a candidate due to my lack of experience in comparison with other candidates that had same or better results on the case study. I know this beacause they were very careful with the feedback they sent to me, and to be honest was quite a surprise. Nowadays is not that common to get constructive feedback.