You can rest assured that Jazz, like any other LCC, will have done their sums.
They will have worked out that it's worth taking the occasional notional revenue hit in order to preserve the principle that passengers don't get to change their bookings for free, they either have to buy another ticket or pay a fee to transfer their ticket to another flight.
Whatever happened to common sense and customer service
Customer service always takes second place to the bottom line. As for "common sense", the airline's strategy makes perfect sense from their point of view.
