MEDfx Software Engineer interview questions

I passed the first round interview, with HR. I passed the second round interview, with the head of software development. Then things came unstuck. My third round interview was supposed to be with a senior developer who lives offshore in Dubai. Owing to the time difference, this was scheduled for 9:00 AM in the morning, on a certain day. Anyway, he called me at 9:00 AM the day before! I was on a train, and unable to take the call. This apparently upset him, because they decided not to move forward with the hiring process after that! I am plenty qualified for the job, and it was their screwup in the first place that caused him to call when I couldn't take the call! Also, numerous times I had to contact them to find out what was going on - no confirmation emails were sent out at any time during the process.