You are very close to get the coupons and discounts for AliExpress It is very simple! If it is a coupon you must click on "Click to copy code and go to the page" and it will redirect you to the destination website, when you arrive at the cart you only copy the promotional code and that's it! If it is an offer you will find the button that says "Click to enjoy the offer". Remember to read the coupon conditions because sometimes they are valid for certain products.