TP ICAP Desk Assistant interview questions

Expected a normal interview, where i would sit down in the office and be asked questions based on my knowledge of the company, motivations and my experiences etc. However, this interview was the opposite. Took place in the reception of the building, and lasted around 5-10 minutes. Where the interviewers seemed in a rush to leave, asked me two questions, and overall seemed uninterested, even though I was more than qualified and gave strong answers, after spending a long time prepping. It felt very unprofessional, and baring in mind I had spent money on travel along with many hours of my time for a interview that lasted a bit more than 5 minutes, I felt quite disrespected.