They sent me the coding challenge right away after applying for the job, without reviewing my cv and without any previous human interaction. The email clearly said I had 15 days to upload my changes. It wasn't a difficult challenge but I wanted to do my best and I also have to work and other appointments, so I was going to send it on the second weekend. Just today, in the 13th day, I've got another email telling me they had reviewed my profile and doesn't fit with what they're seeking. Couldn't they have told me that before sending me their challenge???