Hello kris1646,
Thank you for bringing our attention to this.
Your payment hasn't been authorized instantly due to technical issue. The issue has been resolved and you can download purchased model from your purchases page - https://www.cgtrader.com/profile/purchases
Accept our apologies regarding the delay.
If you will need anything else, please, contact us at support@cgtrader.com or via live chat anytime.
All the best,
Kamile
CGTrader support