Using Promo Code when shopping at Castle Carvery is just a few steps: Add your favorite items to the shopping cart, then click to log in or create a new account, then go back to the shopping cart interface of castlecarvery.co.uk and select the items you want to buy. Then check out, click order, select the eligible Coupon, and finally complete the payment. Plus, here's castlecarvery.co.uk's latest sale on September: Earn 1500 Points To Get Free Steak & Grills.