Wow, they told you another 2 weeks? Something's really wrong with that school! Have you tried gradadm@berkeley.edu, sphinfo@berkeley.edu, jrrbloom@gmail.com ?
For those waiting on berkley, you might as well email them. They obviously are not responsible enough to contact applicants themselves. I had to email them before they sent me an email directing me to a link where I found out I was not accepted...Why did I have to wait so long AND email them?