Speaking of which, I sent a query to humble bundle support asking about expiration of free stealth inc 2 on second day of giveaway and haven't received any reply yet. :P

Also I recently got Parallax and found out that drm-free build in it was not updated.
I sent a mail to humble support and to developer at same time.
Within 2 hour developer replied my mail and told me he is uploading build quickly.
And guess what, game got updated.
But still no words from humble support.

It took them 2 weeks to reply my mail regarding refund and another one week to issue it.

Gog support if not the best are better than others.