Staples Architect/Developer interview questions

I had a brief phone interview and was called in for a personal interview that was supposed to last for about 3 hours. There was a change in schedule as one of the interviewers wasnt available and they brought in a different person to interview me. I had to wait for about 30 minutes and then the last interview went on for about 45 minutes. This, I dont have a problem with. What I didnt like, was that i had taken a day off from work to drive to Staples HQ. I didn't hear anything about how my interview went. I left multiple voicemails with the HR/Recruiter, sent a couple of emails asking if there's an update.. nothing.