Well, there are typically policies written very clearly in your student manual that state the drop out deadline (typically a week). But even then you have to officially drop your classes, you can't just stop going. Did you fill out any paper work when you decided to drop your classes?
Did you have a loan or something from this institution? Usually you have to buy your books yourself. I guarantee that there is a procedure and a policy regarding your situation. You should look at your student manual for the details as every school is different. They guy you have been dealing with sounds like a jerk, so ask if you can deal with someone else. Maybe they can get you on a payment plan, or reduce the amount you owe.



