Unless you are buying this game on Steam or GamersGate, you posted for the wrong one. The game that is always in bundles with the similar name is this:
https://store.steampowered.com/app/382120/Journey_To_The_Center_Of_The_Earth/
The one you made a giveaway is a totally different one and only GamersGate has Steam keys for it.

Thanks.

Gracias ^_^