I'm aware of your scenario, and had already passed on feedback about the handling and management of your booking as you posted it to the other thread. Apologies for not communicating this with you earlier. Another AFF member also sent me a link to that thread, ensuring your disappointing experience was brought to my attention.
Your call to our Reservations team occurred within 24hrs of the change in our system, however our proactive call wouldn't have been too far away. I agree, options to change dates or routes hadn't been exhausted in your initial call to us. This has since been followed up with the individual concerned.
Further more, I've let our Customer Care team know of your circumstances, and they will be in touch with you upon your return later this month. Please keep let me know via private message if there's anything I can assist your with in the interim, or if you have any additional information to add about this matter.