My ticket says:
Air fare: USD 350
Tax: USD 180.00 + 5.50 + 128.97

Yes I understand it is totally my fault for cancelling the ticket and getting screwed. No, I didn't read the fine print about cancellation fees, but even if I had, I still would have bought the ticket. Rescheduling to a new date would be a $200 fee (each time) and I didn't have a date to give them. I asked if I could postpone to a future date (i.e. give me credit for a future flight) but no, not possible. Had to either give them a new date or cancel the ticket.