EDF Energy Analyst interview questions

I had a phone interview with HR, then another phone interview with a member of the team, and then was flown out to San Diego. When I got there I was escorted to a room where I met with several different individuals at the company, two at most at a time. I believe I would have gotten an offer but I received an offer I was more interested in before they got back to me (about 2 weeks later), so I turned them down. After I turned them down, they ghosted me on covering some of my transportation costs which they explicitly said they would pay for. That really rubbed me the wrong way, hence my rating. They did pay for my flight though and the interviewers were very nice. At least one interviewer wasn't a person directly on the team I was applying for which I thought was a positive, since it offered a different perspective of the company.