Krayden interview questions

I had 7 interviews in total. 2 of the 7 interviews had scheduling conflicts where I had to wait for the hiring manager (30-45 mins for an in person). After investing my personal time into the endeavor and raving about the upper management involvement, I was not even provided the respect /decency of an email or phone call to inform me that I didn’t get the job. Very unprofessional and inconsiderate.