EBY Flash Sale: 50% Off First Box! Two Days Only! Posted by Hello Subscription on June 7, 2018. Subscription Box Coupons & Deals / EBY Coupons Make the first comment! Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for LaterGo to commentsNotification For two days only take 50% off your first EBY box with coupon code SOFIASUMMER!