Sometimes with, sometimes without a code. They also have seasonal event's, Christmas for example would've been a good time to buy stuff.
There should be two code fields, one for coupon codes, and one for gift card codes.
Btw think well before you buy stuff, don't just buy stuff because it looks fancy, or you'll be loosing a lot of money for nothing.
I'm a dev doing a game with Daz renders, and I haven't even spend a 200 bucks on Daz assets, and yet, none of the assets I use are stolen/pirated, I either bought them (a few), use free stuff, or my own assets