They aren't selling. Just email them and they will remove clips of your music, it's really simple and I've heard numerous reports of labels having their music removed VERY quickly.

Here is the email address, and a template to make it even easier

Email - legal@jetgroove.com

Template

Dear Jetgroove,

As the copyright holders, we request that you remove any information or data relating to the following Labels/Artists from your website (www.jetgroove.com) as soon as possible.

1 - My Label
2 - My Artist Name

Thanks,

Your Name