As you might know, US players often play with devs, and even livestream the events. Alonside the streams, the devs hand out codes. Highpants, from the US GRO forums, gave out these two codes:
B4e0-1YNK-MH75-7PHR
B3e0-1CQN-ZK0I-WIAU
To use them in-game, go to the Store, then click Redeem Coupon. Enter the code and enjoy the loot ^^
If you see Highpants on the GRO forums or in-game, be sure to give him thanks.