Well! This post doesn't seem to be attracting much interest; obviously scant competition for us three to worry about!
I sent then a CV a few months ago and received an app for my efforts. Heard nothing after returning that, however resubmitted my cv following the ad in flight. ( I have many more hours and an MCC to update them with).
I then received the post card. I guess it's a standard response when actively advertising for pilots. May not be the end of the World, though. Live in hope rather than submission!