I had an HR interview for about 20 mins, it was a pretty good conversation and gave me a good overview of the company. After receiving a positive feedback, I was given a design task to know more about my design process. I spent around 16 hours to work on it. One week after submitting my design task, I got a positive feedback and invited to go for 2 hours and 30 minutes team interview. I was interviewed by the Head of Design, Head of Product, Design Team and the Chief of Product Officer. They asked a lot of technical questions especially on how to handle design problems and they asked as well for the output/result of different products that I've managed. I didn't saw the HR during the on-site interview so I emailed her that it was nice meeting the whole team and I am looking forward to her next update. After a couple of days waiting, the HR didn't reply so I emailed again to ask for a feedback/update regarding my application. One week after, they sent me an email that they've chosen another candidate which has more experience on a similar product. A little unprofessional to just never respond to emails especially to queries/updates. I think that if you ask a candidate to do a level of work for free, you owe them a little feedback or at least a personal response.