Western Union Associate DevOps Engineer interview questions

There were 2 technical rounds , 1) first technical round was good, the interviewer seems knowledgeable , some basic but conceptual questions were asked , it went for about 1 hrs. 2) the second interview were taken by two panels , both were is so hurry , I didn't expect the senior pro to behave like that although my interview went well but was not selected , I don't know what exactly happened , they seems satisfied and happy with my interview. Post interview I called/mailed them multiple times to get my feedback but as expected no response was given . Pretty disappointed with their communication , atleast tell the feedback and reason for rejection.