I doubt that we can redeem that or not. Because, whenever i reach some point and try to redeem, it always shows that no stock available and that's why you're trying to sell. Or give me proof that you can redeem or proof that you've already redeemed.
It says no stock available because there is a lot of users simply , and you have to be in time for the stock .
As far as I know when you are a gold member you can know when the restock time is and you won't have any issues redeeming your points . My friend isn't gold or anything and he was able to redeem because they announce in Facebook sometimes , USB drive took time to arrive but it arrived eventually . I don't know OP or anything , just saying .. this is how it works on Gokano