DHL Global Forwarding, Freight Manager interview questions

Applied via a recruiter. 3 month process. Interviewed on-site, not offered the job. *Not reimbursed for taxi fare during on-site. 1st round - phone interview with primary boss in Cincinnati and VP in Miami 2nd round - create presentation from case study 3rd round - on-site; originally scheduled in Cincinnati, moved to Miami to reduce airfare cost. I was told I would be presenting the powerpoint I created, this wasn't the case. ***I am 75% confident my presentation was used for someone to use in their graduate-level class. The case study had little correlation with what the role was created for. My recommendation for anyone asked to create a presentation for an interview is to invoice the company for 10 hours consultation time and have the company sign a NDA.