UNICEF interview questions

They contacted me for an interview about a month after I applied. The interview was very short - maybe 30 minutes, and via Skype (no video). The questions were very technical - not competency based at all. After a few days, they contacted me to share two reference letters, which I submitted within the week. After that, the process took a lot longer. They finally contacted me for my professional fee about two and a half weeks later.

A very lengthy application process followed by a test and panel interview (2 hours). I was invited back for a second interview the following week, but when I arrived, nobody was expecting me. The receptionist told me my interviewers were in an external meeting, but somebody else told me they were off sick. I was made to wait 20 minutes in the reception area and was eventually interviewed by two people from a different team, as opposed to the Head of Marketing and DM Manager. The two people who interviewed me had not read my application and could not answer many of my questions about the role. I waited 5 days and eventually got in touch with Unicef myself, when they told me I had been unsuccessful. The whole experience seemed very unprofessional and gave me a bad impression of the charity.