Select the Missguided US promo code that will give you the largest savings and copy that to your clipboard. Now visit the Missguided US website and place the products you would like to purchase in your shopping bag. When you are done, click on the shopping bag icon to review your shopping list and make alterations if you want. Then click on the plus sign of the 'Discount Codes' option and paste your promo code in the box. Click 'Apply' to get your discount.