Dia & Co. Deal: Get Free Styling Fee On Your First Dia & Co Box! Posted by Hello Subscription on July 5, 2018. Subscription Box Coupons & Deals / Dia & Co. Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Dia & Co. is a monthly personal styling subscription for plus-sized women. They’re currently offering free styling fee (typically $20) on your first Dia & Co Box! Just use this link to get the deal. Valid until 7/31. Visit Dia & Co to subscribe or find out more!