I also have recived a letter telling me I owe Comair. When I was leaving without finishing OE I asked about that and was told they didnt know. Now a year later I magically went to collections with out so much as one bill. Im not paying. If they touch my credit Ill sue. It wont cost me a dime I have lawyers in the fam. and for the one who say we should just pay...feel free to send mine in.