[MENTION=170224]blandy62[/MENTION] it sounds like the OP is a panicing about not registering his cancellation, like the checkin staff will be stressing about two no-shows as he does say "I know I won't get a refund"

With the tax refunds on Airasia have a admin charge and then they go into a credit account. It's not worth the 18 hours of back and forth to deal with them on it.