Using Promo Codes when shopping at PrettyLittleThing is just a few steps: You can view your existing PrettyLittleThing Promo Codes by logging into your account, viewing your profile and clicking [My Card]. If the product you want to buy complies with the Promo Codes rules of use, then you can add the product to your cart. Next, it will jump to the payment page, select Coupon Codes of your PrettyLittleThing on the payment page, and complete the payment. Also, welcome to this promotion from PrettyLittleThing on October: Up To 12% Saving Site-wide.