PLONK Holiday Coupon: Save $35 On All Wine Club Gifts! Posted by Hello Subscription on December 12, 2018. Holiday Subscription Box Deals & Doorbusters / Subscription Box Coupons & Deals / Plonk Wine Club Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification This holiday season, Plonk Wine Club is offering $35 off all wine club gifts! Use coupon code HOLIDAY35 to get the deal. Ends 1/1/19. Are you getting Plonk Wine Club?