I sent some material, my voice of a melody and a track to one your the beat makers. I noticed few days had passed and I heard nothing from him. So, I asked him if there is any updates. He promised to do it the next day. Then sent me a message saying his grandmother is in the hospital. I told him I understand, then he blocked me but he also took with him my materials. If he couldn't do it he could have just said no, then I wouldn't have exposed my work to him. For all I know he could be selling what I created to other people and using my work.