IntelliaTech Solutions interview questions

I attended walkin interview. There are 4 round. Screening, coding, technical interview, managerial round. All are easy. In coding round you have to solve 1 question out of 2 questions. Must prepare collection framework and stream.

There hr team connected me and calls me for interview at indore office so when i go there security guard is not letting me in and even not ready to hr and worst Hr mangment they are not picking calls and ignoring messages i only want to know why they call me for interview when they don't want to pick. I literally travelled 3 hr for interview in rainy day and received this kind of behavior.