I am a seller on GEMM (Global Electronic Music Marketplace). When you make a sale, they take 13 percent commission, then they send you a check of what you sold. They used to to this, but lately they have not paid me. According to research, they are doing this to many other sellers. I have made complaints to the Ca Attorney General and the Federal Trade Commission. They owe my 37.82 from some sales. They took their commission but have not paid me. This has been going on for over two months. They have been avoiding my communications. They are taking their cut, but not sending the checks. Avoid this company!