DataLink Software Project Manager interview questions

Phone screening by Human Resources requested 1 week after submitting online application. That call was followed by a phone interview with the hiring manager within 2nd week. On-site interview set for 3rd week. DataLink Software paid no expenses to travel to Tampa for this interview. The interview was scheduled for only 1 hour yet listed four employees; a panel format interview, I thought. However, only the hiring manager showed up in the interview room; no explanations; no overview of company benefits or possible pay range. New, luxurious office. Rejection email received 24 hours after interview.