I'm not sure why you feel like you're being taken advantage of....?
Well, I would say that come February you are still going to have to write another check whether this one has cleared or not. You are after all still living in the apartment which is completely separate from a banking issue, correct? Your bank, Wachovia, obviously hasn't received the check from PNC yet which is why it hasn't posted to your account and they don't have any information about it. Try finding out which PNC branch the manager used to deposit your check & get in touch with them. Whether the issue has been resolved or not, the fact that you wrote a check means that money is essentially no longer in your account so it's your responsiblity not to overspend now.