Alpha Flight Guru changed our flight details whilst we were already in transit (after having sent an email the day before to wish us a happy flight), 15 hours before take-off. Our android had already been cancelled because we were returning from 12 months abroad. When we were told at check-in our tickets were invalid, we tried to call AFG but couldn't get anyone so had no choice but to buy last minute (expensive) new Business Class tickets. Alpha Flight guru will not honour a refund, saying that they had already issued new tickets. Is it not possible for a travel agent to leave a message at a Check-in counter in such a situation?