Here are the steps on how to use Promo Codes when shopping at acidreignshop.com: Please log in or create an account with acidreignshop.com, then select a product. If you don't have a shopping idea, e-coupon-code.com has 16 promotions for you to check out. Then place an order, click the Coupon Codes obtained on the settlement page, you will automatically jump to the existing Coupon Codes page, select the Coupons you want to use, and complete the payment.