I also applied to the chat position on March 11th and have not received a call or email. I have technical support and chat experience. I looked over my resume and application questions again, and everything looks fine. This is sort of depressing. I have applied to a few other positions with the hope that I will get called for at least one of them.
Don't fret. I applied for the Chat position on Feb 20...and just got called back April 7. They'll get around to ya.