Explain ? That was an E-mail from AirAsia I dont think they would say one thing and do another, But then again who knows ...
Daz not every department in the company is in the loop on every strategic move decided further up the chain. I suspect your email reply was made in good faith but it appears likely that this is becasue they haven't been briefed as to the move yet.
It is *very* common for the left hand and the right hand not to know what each other are doing. Aer Arann did the same denying they were pulling out of PIK until they moved to GLA.