Wunderkind Technical Implementation Engineer Software Engineer interview questions

I had a phone interview after applying for this position. Then I was invited to taking the coding challenge. I had a week to complete it. I submitted it before it was due. Tested out my code and it worked. However after I submitted the coding challenge I was not invited to continue in the application process. I am not disappointed about not getting the opportunity. I kind of hoped for some feedback regarding the coding challenge ( as it was a learning expereince). That is about it.