I have been sent an interview coding challenge. It was a Hackerrank challenge and I completed it fully, tests were passing and all checks were fully done. I submitted the challenge and then waited for a response after sending a submission email. 1 week passed and I sent another reminder email looking for a response back. And then 1 more week passed with another reminder email. I didn't want to be seen as unresponsive so I followed it up. However the person who was responsible for my interview, never ever returned back to any of my emails. I'm assuming what I received was just a simple automatic email including all the instructions for my challenge. I asked a question, sent multiple emails for the results. Nothing! And then I found out 2 weeks later that I got rejected for some unknown reason. There's no explanation, nothing, no response email. I even doubt they found time to look if I completed the challenge at all. What a poor process.