This topic has popped up a lot in the Diablo community over the past few hours, so we thought we should cover it. Those that participated in the Diablo 4 betas and completed the requirements for the Wolf Pup and/or Cry of Ashava mount trophy will not simply be getting them directly into their inventory.
What you need to do for the Wolf Pup is go to Kyovashad (or any city with a wardrobe), head to the stash area and access the wardrobe. Here you can change your character’s look, including transmogs, and the Wolf Pup is a back customization option. You can find it under “items”.
The same applies to the Cry of Ashava mount trophy, which you can find at the stables under trophies.
The same principle applies for all pre-order and special edition items. Enjoy your cosmetics!