Amazon For Business Analyst interview questions

After an online application, a HR person has contacted me per email to ask me to do a homework. There was an Excel table with a lot of data numbers inside and excel sheets. In the end it was a PIVOT table to prepare. Additionally, with sending back the homework I had to state the time spent for doing the homework. 2 weeks later I had an interview with a manager, a girl who was newly promoted ans spoke weird english (i guesss with some Irish or Scottish accent), she asked me a numerical reasoning test on telephone, then a brain teaser followed. 2 weeks later I had another interview with 1 Polish team member, who even tested my Polish (?). She asked if I worked with SQL and Excel. I was one of the last 2 candidates for the position, and they declined without even explaining the reasons why the other candidate was better. I was friendly and asked them per email, but no one ever came back to me. Very unprofessional. In Germany this would be considered as disrespect, and no company does it. THey are very long and slow in desicion making and reacting, which should be no thte case for a distance retailer, especially such as amazon.