ANA Travel Gift Certificate

Because it is ANA Diamond member? Whether the winning probability proportional to the number of times simply boarding?
Following the last year, and was elected to the "campaign to Win flying in ANA VISA".

I do not have also used travel gift certificate that was elected last year still, I do not use it became so \ 20,000 worth gathered two have.

Because there is no expiration date is written even look at the travel gift certificate, I'm assured that it is not to me was unusable expired.