I received a email as beta tester which got 40% discount, what's i should do i'm out of usa?

I received a email that containing I got 40% discount for buy a NS, unfortunately my country region not yet available:

1.What's I should do to buy this discount as I difficult to find out my country region in the list (Indonesia)?

2. How long the validity of this discount?

3. My remaining trial date 20 days, what can I should do if the trial date has expired if the NS or NSwB not yet available in my country?

Please advice me.

Tks & B/regards,