Dear Airasia,
For the past 3 years Airasia has changed my flights from convenient times to inconvenient times. Every time you say it is for "operational reasons", but offer no explanation.
Booking number: F7HYHQ
The flights are return tickets CNX to KBV in Thailand. Every year for the last 3 years these flights have changed from convenient late morning departures to very early departures. I always book well in advance as do many other people. Why not just make ONLY early departures available rather than changing 6 months after the advertised booking? It seems as though you are deliberately misleading the customer by offering attractive times but then deceptively altering the schedule closer to the time. The fact that this has happened for the last 3 years suggests intentionality and deception rather than a vague 'operational reason'. I am sure the aviation licensing board would like to know how you operate.
If there were another airline operating that route you would be out of business.