The second batch of S17 is on sale today. The hashrates will be credited to your account in 480 hours from the time of purchase.
Users who have already bought the first batch will get a US$200 coupon. The coupon will be issued to your account by the end of this week, please check.
For more information about using your coupons, please read this article: How to use coupon to buy S17 & S15 miner?