Why doesn't Evreward show me the option of combining coupons that don't have a code?

Coupons that don’t have a code are activated when you click on the “Get Deal” button next to the offer’s description and are taken directly to the store’s website, and not through a rewards program. However, be sure to check the rewards programs themselves for the same coupon, because if it’s activated from the program, you can earn both discounts.