PLONK Wine Club Spring Sale: 10% Off All Subscriptions! Posted by Hello Subscription on March 20, 2017. Subscription Box Coupons & Deals / Plonk Wine Club Coupons . The links in this post may be affiliate links. Read full disclosure Save for Later Notification For this week only Plonk Wine Club is offering 10% off all orders! Now through 3/27 just use coupon code SPRINGWINE to save 10% on all wine subscriptions & gift subscriptions!