VITEC interview questions

Interviewed for Vitec Memorix via K Resourcing Skopje outsourcing agency. Despite solving the coding assignment and answering their questions during the technical interview, I was rejected without a clear reason/explanation. Just received a rejection email template. While the interview process seemed OK at first sight, in the end they ruined the whole experience. Having got to the final stage of the interview process, at least I expected a constructive feedback from them.

Technical interview: Asked to describe the previous company's business and its core focus, outline areas of the team and mine specific contribution to the project. Regarding the project: the system architecture and design, direct contribution, technical challenges faced.