I hope you are familiar with humble bundle and how to redeem gift links.

In case you have many email addresses, you have to check the one you entered in the gift-link form
as shown here
https://i.imgur.com/92L3dsG.jpg

Just to be clear, when you opened the link I sent you, you saw the form like in this image https://i.imgur.com/92L3dsG.jpg?
Right?

I think emails from Humble arrive quickly, but maybe this one got stuck somewhere.
Wait a few hours and if it still hasn't arrived, use the resend option.

PS: No need to ask, but have you checked your spam folder?