Hi there,

Thanks for reaching out to Humble Bundle Customer Support. I’m sorry about the confusion with those summer sale rewards!

Due to unforeseen circumstances, we don’t have anymore keys available for those games and sadly we cannot currently attain more from the developers. We understand if this is a letdown, and we're working to assure we never allow this type of issue to reoccur.

Sorry again for the trouble, but please let me know if you have any other problems or questions and I'd be happy to help. Other than that, I hope you have a great rest of your day and take care!

All the best,

-Kasey
Humble Bundle
http://support.humblebundle.com/

번역기 돌려보니 못 준다는 것 같습니다. ㅜㅜ