Pre-order skins issue

Hello I was wondering about the pre-order skins. When I pre-ordered was I supposed to get a code or something for Battleborn to get the promised Gold skins for Thorn, Reyna, Montanna, Marquis, and Rath? I preordered the game through Gamestop and got the minifigure. The package came in the mail late. It showed up at my door on the 9th. so was there a date I missed. If so is there any way I can still aquire these skins?

Did you recieve a receipt? My preorder code was on my receipt.

Im not sure. since I ordered online I cannot return to the receipt page.