Terra Bella Box Labor Day Sale: 20% Off Longer Subscriptions! Posted by Hello Subscription on September 4, 2017. Subscription Box Coupons & Deals / Terra Bella Box Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Terra Bella Box having a sale on longer subscriptions! Use code LABORDAY to subscribe to a 6 or 12 month subscription and get 20% off! Today only!