Please ping me personally on my email and I'll be happy to connect you with the right people. More often than not, these matters are simple communication issues that can be resolved. Even though I don't work there anymore, I'd be thrilled to help out the community any way I can.
Re:"money" issue. Everyone has a hand in making an artist successful. Yes the artist produces the content and should be compensated for such. I fully agree. But Grooveshark brings the audience, the user experience, the hosting, and the analytics. These services aren't free. Do you get mad when people sell you tap water in a bottle and demand $3.00 for something that costs $0.25?
I'd be pretty mad if my friends and neighbors were taking five-gallon buckets of my water, bringing it to an Aquafina factory, and then an Aquafina sales rep was ringing my doorbell trying to sell me $3 bottles of water.