Preguntas de entrevista para el cargo de Senior .NET Developer en SOUTHWORKS

The start with a 3 technical question exam. The second question was about modifying code, to fix a bug, by only changing two lines. I did change two lines a some of the automated tests passed, but in the final report I got 0% on that question (on the other ones I got 100% and 66%) When I reach over email and linkedin chat, to mention the above situation they just will not answer anymore. They reply with the default rejection template and not a single mention of what I asked