One of the problems with nonrefundable deposits is that you can't make any price adjustments as Ken the Cruiser pointed out. And, they are very tricky about it. You assume that this would be the fare clearly identified as nonrefundable. But, it also looks like you can get the Crew Appreciation added to the HIA which is usually a refundable deposit. But, if you read the fine print, it seems to make that a nonrefundable deposit. You have to be very careful.