Korean Snack Box Coupon: Get $4 off your first box! Posted by Hello Subscription on December 14, 2017. Holiday Subscription Box Deals & Doorbusters / Subscription Box Coupons & Deals / Korean Snack Box Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Use coupon code KOREAXMAS4 to save $4 off your first Korean Snack Box! Ends 12/31. Visit Korean Snack Box to get this deal!