Atomia interview questions

The interview was brief but to the point, I was asked the basics of programming, and because of lack of previous experience, university projects and courses I took. The HR and interviewer were friendly and overall, the interview wasn't too hard and I felt like it went well. A few days later I got an e-mail of rejection, and while I didn't feel like I did anything wrong and wasn't angry about it, they didn't respond to any further e-mails about why I was rejected, which seems to be a standard practice in my city.