adidas Full Stack Developer interview questions

First of all the process is really slow. From first pre-screening session, to actually receive an invitation to book a time slot was almost a week. We have scheduled a time for a phone interview. Adidas have to cancel it unfortunately, I have provided new time slots that work for me, but unfortunately, I have bad luck and was not able to get to the interview, was at hospital with an emergency, and my phone died. I have mailed them within next 2 hours asking for a possibility to reschedule. No feedback, no reply, same stuff next day, and the week after. After literally calling them, they told me, that actually they were successful with other candidates in a mean time. First, why wasting my time, if someone else works for you, it’s definitely not a decision made over the night; second, is it difficult to provide a feedback? Third, adidas emergencies are priority one!