dashmote Data Engineer interview questions

After having an Interview with HR went to round 2 which is doing a case study and go to the next round which was an interview with Data engineer and data scientist of Dashmote. Everything went well but they need to discuss with the boss and will get back to me. After 1 month I didn’t hear anything from them nor reply on my email. I mean it’s fine if they don’t want to hire me but I’ll be more appreciated if they didn’t treat me like this. It’s so unprofessional.