[W]Rimworld coupon

Do Rimworld coupons even exist? I did a search and found nothing. Even if they did exist, they're probably expired. There's nothing in the game's forum about coupons (typically people will ask there), nor nothing in Coupon Dumpster in terms of request or past availability.

Note: I'm not interested in your Ori coupon, but I don't think Rimworld coupons exist.

maybe exist... but i need one coupon good for exchange.