ShareTheMeal interview questions

I'm really disappointed with Share the Meal. The process officially started in April and ended in May, with no offer. I'm not getting in details of the process here, my critique is very specific: how they handled my design assignment. During my preparation for the final interview, I opened the STM app, and guess what? They implemented two of my main ideas that I proposed. Yes, they put it with a different style, but the concept behind it came clearly from what I presented weeks before. I was shocked, sad and disappointed. I tried to find some answers for that during the interview, but they were like ignoring that was something wrong with that. I'm just sharing this story because this is a very serious issue. We are talking about people's work, time, and effort. It is not just because I'm was willing to work there, that they can simply take it and use whether they want. I don't think they should hire me, just base on design skills, there are many other factors that I wouldn't be the best fit, but still, that completely wrong, especially for a humanitarian organization. On top of this, the recruiter ignored my emails, and I never got any feedback regarding the final desition.