Checkout.com Senior Product Manager interview questions

There are 4 stages in the interview process -the initial one with HR followed by a conversation with a Senior Product Manager , a case study to complete at home and a final 2.5 h interview with both Product and Engineering The thing that was most frustrating was the fact that after investing a lot of time in working on the case study and preparing for the interviews I got no reply or feedback from the HR, apart from ‘ Will let you know by tomorrow’ - for 2 weeks! Very unprofessional, even if I wasn’t the right candidate for the job now I won’t apply for any other jobs with them in the future