ABAX (Norway) .NET Developer interview questions

One interview went very nice with the recruiter. Then, they asked me to make a project. I did a big project with thousands of lines and dozens of tests. They comply about minimal things, flex on my code even it was matching all the aspects of what was asked and even more. The office is in Poland. I was expecting some positive feedback, even if it was rejecting, I expected something like constructive and honest. I receive a message that make me glad I didnt receive a offer.