Originally Posted by lewisturek
PPS I realise that I booked a non-refundable ticket, but I don't expect the price of a ticket to go down once I've bought it.
Fares can go up and down; was perhaps the cheaper fare in a fare basis that had no availability when you booked. Conversely on the issue, you wouldn't expect the airline to send you a bill for extra money should the fare go up
Dave