What are coupons for?

Question

What are coupons for? E-mails arrive encouraging you to use the coupon with the discount percentage, you're interested in the item, you buy it, when it’s time to pay you enter the coupon code and it tells you THAT IT’S NOT VALID FOR THIS ITEM. Come on!!!

marioelegio · Accepted Answer

Along with the coupon comes the sheet with all the terms and conditions of use, had you read them? himario