You can trade around those coupons, including selling it for BTC.
If you haven't won a coupon, or want me to do more stuff, feel free to send me a PM and we can work something out

So, back to the game. There are 26 crates, the letter A to Z. There are four coupon prizes:
2 hours coupon
1 hour coupon
30 minutes coupon
15 minutes coupon
Start picking a crate! One guess per user. Only 8 guesses in total.
SHA-256: d410f6a9737d28efade7ab888fc412e787ea85ef500a00c31a0702baa1741bcc