<p>It's been giving me an error everytime I try to pay. So...I haven't paid for Fall semester. Who can I contact? Am I screwed?</p>
<p>I don't know what you meant by "having paid for fall semester". Is that you haven't paid the amount due on August 15th? That would be a big problem. I think you should contact with the Financial Aid Office. But it's Sunday now. (510) 642-6442 (undergrad)
You can also try to contact the Billing and Payment Services 510-642-3190.
They don't say clearly what they would do with your case, try to contact them as soon as possible.</p>