Horace Coupon

[UXO]

I just recently completed one of Horace's quests and I received a coupon from him. It's a blue coupon with a house icon. However, I have absolutely no idea what it is used for. My only assumption is that it's for later DLC that has yet been added to the game. I also have noticed there is also a green coupon with a shirt icon on it (I'm assuming it's from Camila). If anyone knows how these coupons are used, please enlighten me. Thanks!

[UXO]

Okay, so I just bought some items from the shop and I noticed it disappeared. So I believe it allows you to purchase a specific type of structure item from the shop for free. However, if I'm wrong, correct me please!