Kroger interview questions

Applied online and received a call about 2 weeks later asking for an interview. The interview lasted approximately 30 to 45 minutes and I mostly talked about myself and my lifestyle emphasizing my ability to work on a team and my friendly demeanor since I had no prior work experience. At the end of the interview I was offered a job and accepted. We then set up a time that I would come in for training videos and filling out paperwork. I was on the job training on the floor within a week.

I took the survey online and a week later was asked to come in for a formal interview. I came in looking very professional and handled myself well and thought I nailed the interview but was not offered the position. I was disappointed that I was not offered and am still unsure why the position was not offered to me.