Someone stole my account and deleted my songs, help!

[turtleey]

So I was having some trouble logging in today, it would log in for 2 seconds then log me back out. I reset my password, got back in, and some ***HOLE deleted my saved songs and replaced them with Linkin Park and System of a Down. Now they're the only recommendations I'm getting. It would be funny in other circumstances but I just want my songs and preferences back. Is there any way to rollback my account? I'm a paying user and really, really want my stuff back.